Ubuntu update for linux



Published: 2023-10-05
Risk High
Patch available YES
Number of vulnerabilities 13
CVE-ID CVE-2022-45886
CVE-2022-45887
CVE-2022-45919
CVE-2022-48425
CVE-2023-1206
CVE-2023-20569
CVE-2023-2156
CVE-2023-3212
CVE-2023-38427
CVE-2023-38431
CVE-2023-4155
CVE-2023-4194
CVE-2023-4273
CWE-ID CWE-416
CWE-362
CWE-763
CWE-400
CWE-200
CWE-617
CWE-476
CWE-190
CWE-125
CWE-843
CWE-121
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Ubuntu
Operating systems & Components / Operating system

linux-image-virtual-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-lowlatency-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-lpae-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-64k-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure-fde (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1014-azure-fde (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-virtual (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-starfive (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-raspi-nolpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-raspi (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-oracle (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-lowlatency-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-gcp (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-34-generic-lpae (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-34-generic-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-34-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1016-gcp (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1014-raspi (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1014-lowlatency (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1014-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1014-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1013-oracle (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1013-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-6.2.0-1006-starfive (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 13 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU75336

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-45886

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in drivers/media/dvb-core/dvb_net.c in Linux kernel. A local user can trigger a race condition and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Race condition

EUVDB-ID: #VU75338

Risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-45887

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a race condition in drivers/media/usb/ttusb-dec/ttusb_dec.c in Linux kernel. A local user can exploit the race and crash the kernel.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Use-after-free

EUVDB-ID: #VU75337

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-45919

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in drivers/media/dvb-core/dvb_ca_en50221.c in Linux kernel. A local user can trigger a race condition and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Release of invalid pointer or reference

EUVDB-ID: #VU77625

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-48425

CWE-ID: CWE-763 - Release of invalid pointer or reference

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to an invalid kfree in fs/ntfs3/inode.c caused by improper validation of MFT flags before replaying logs. A local user can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Resource exhaustion

EUVDB-ID: #VU77953

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1206

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a hash collision flaw in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when an attacker makes a new kind of SYN flood attack. A remote attacker can increase the CPU usage of the server that accepts IPV6 connections up to 95%.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Information disclosure

EUVDB-ID: #VU79263

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20569

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to a side channel issue in AMD CPUs. A remote user can influence the return address prediction and gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Reachable Assertion

EUVDB-ID: #VU76392

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-2156

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion when handling IPv6 RPL protocol. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) NULL pointer dereference

EUVDB-ID: #VU78009

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3212

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the gfs2 file system in the Linux kernel. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Integer overflow

EUVDB-ID: #VU81658

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-38427

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the deassemble_neg_contexts() function in fs/smb/server/smb2pdu.c in ksmbd. A remote attacker can send specially crafted data to ksmbd, trigger an integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Out-of-bounds read

EUVDB-ID: #VU81659

Risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-38431

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in fs/smb/server/connection.c within ksmbd. A remote attacker can send a specially crafted data to the system, trigger an out-of-bounds read error and read contents of memory or perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Race condition

EUVDB-ID: #VU79488

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4155

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in KVM AMD Secure Encrypted Virtualization (SEV) in Linux kernel. A local user can exploit the race and escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Type Confusion

EUVDB-ID: #VU79485

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4194

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a type confusion error in TUN/TAP functionality. A local user can bypass network filters and gain unauthorized access to some resources.

The vulnerability exists due to incomplete fix for #VU72742 (CVE-2023-1076).

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Stack-based buffer overflow

EUVDB-ID: #VU79487

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4273

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the implementation of the file name reconstruction function in the exFAT driver in Linux kernel. A local user can trigger a stack overflow and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

linux-image-virtual-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-lowlatency-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package): before 6.2.0.1014.14~22.04.11

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 6.2.0.34.34~22.04.11

linux-image-azure-fde (Ubuntu package): before 6.2.0.1014.14~22.04.1.11

linux-image-6.2.0-1014-azure-fde (Ubuntu package): before 6.2.0-1014.14~22.04.1.1

linux-image-virtual (Ubuntu package): before 6.2.0.34.34

linux-image-starfive (Ubuntu package): before 6.2.0.1006.9

linux-image-raspi-nolpae (Ubuntu package): before 6.2.0.1014.17

linux-image-raspi (Ubuntu package): before 6.2.0.1014.17

linux-image-oracle (Ubuntu package): before 6.2.0.1013.13

linux-image-lowlatency-64k (Ubuntu package): before 6.2.0.1014.14

linux-image-lowlatency (Ubuntu package): before 6.2.0.1014.14

linux-image-kvm (Ubuntu package): before 6.2.0.1014.14

linux-image-generic-lpae (Ubuntu package): before 6.2.0.34.34

linux-image-generic-64k (Ubuntu package): before 6.2.0.34.34

linux-image-generic (Ubuntu package): before 6.2.0.34.34

linux-image-gcp (Ubuntu package): before 6.2.0.1016.18~22.04.1

linux-image-azure (Ubuntu package): before 6.2.0.1014.14~22.04.1

linux-image-aws (Ubuntu package): before 6.2.0.1013.14

linux-image-6.2.0-34-generic-lpae (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic-64k (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-34-generic (Ubuntu package): before 6.2.0-34.34~22.04.1

linux-image-6.2.0-1016-gcp (Ubuntu package): before 6.2.0-1016.18~22.04.1

linux-image-6.2.0-1014-raspi (Ubuntu package): before 6.2.0-1014.16

linux-image-6.2.0-1014-lowlatency-64k (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-lowlatency (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1014-kvm (Ubuntu package): before 6.2.0-1014.14

linux-image-6.2.0-1014-azure (Ubuntu package): before 6.2.0-1014.14~22.04.1

linux-image-6.2.0-1013-oracle (Ubuntu package): before 6.2.0-1013.13

linux-image-6.2.0-1013-aws (Ubuntu package): before 6.2.0-1013.13~22.04.1

linux-image-6.2.0-1006-starfive (Ubuntu package): before 6.2.0-1006.7

External links

http://ubuntu.com/security/notices/USN-6412-1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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