Ubuntu update for linux-oem-5.17

1) Memory leak

EUVDB-ID: #VU64079

Risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1012

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to insufficient randomization in the net/ipv4/tcp.c when calculating port offsets in Linux kernel cause by small table perturb size. A remote attacker can cause memory leak and gain access to sensitive information.

Mitigation

Update the affected package linux-oem-5.17 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.17.0-1011-oem (Ubuntu package): before 5.17.0-1011.12

linux-image-oem-22.04a (Ubuntu package): before 5.17.0.1011.10

linux-image-oem-22.04 (Ubuntu package): before 5.17.0.1011.10

External links

http://ubuntu.com/security/notices/USN-5471-1

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.

2) NULL pointer dereference

EUVDB-ID: #VU63433

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-2022-1205

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 and use after free errors in the net/ax25/ax25_timer.c. A local user can simulate Amateur Radio and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-oem-5.17 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.17.0-1011-oem (Ubuntu package): before 5.17.0-1011.12

linux-image-oem-22.04a (Ubuntu package): before 5.17.0.1011.10

linux-image-oem-22.04 (Ubuntu package): before 5.17.0.1011.10

External links

http://ubuntu.com/security/notices/USN-5471-1

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: #VU64082

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-2022-1734

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 Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations in some situations. A local user can trigger use-after-free to escalate privileges on the system.

Mitigation

Update the affected package linux-oem-5.17 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.17.0-1011-oem (Ubuntu package): before 5.17.0-1011.12

linux-image-oem-22.04a (Ubuntu package): before 5.17.0.1011.10

linux-image-oem-22.04 (Ubuntu package): before 5.17.0.1011.10

External links

http://ubuntu.com/security/notices/USN-5471-1

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) Use-after-free

EUVDB-ID: #VU64087

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-2022-1836

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 use-after-free error in the drivers/block/floppy.c in the floppy driver module in the Linux kernel when working with raw_cmd_ioctl and seek_interrupt. A local user can trigger use-after-free to escalate privileges on the system.

Mitigation

Update the affected package linux-oem-5.17 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.17.0-1011-oem (Ubuntu package): before 5.17.0-1011.12

linux-image-oem-22.04a (Ubuntu package): before 5.17.0.1011.10

linux-image-oem-22.04 (Ubuntu package): before 5.17.0.1011.10

External links

http://ubuntu.com/security/notices/USN-5471-1

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) Use-after-free

EUVDB-ID: #VU64070

Risk: Low

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-1966

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a use-after-free error in the Linux kernel's Netfilter subsystem in net/netfilter/nf_tables_api.c. A local user can trigger use-after-free error to escalate privileges on the system.

Mitigation

Update the affected package linux-oem-5.17 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.17.0-1011-oem (Ubuntu package): before 5.17.0-1011.12

linux-image-oem-22.04a (Ubuntu package): before 5.17.0.1011.10

linux-image-oem-22.04 (Ubuntu package): before 5.17.0.1011.10

External links

http://ubuntu.com/security/notices/USN-5471-1

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. However, proof of concept for this vulnerability is available.

6) Out-of-bounds write

EUVDB-ID: #VU64073

Risk: Low

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-1972

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary error when processing untrusted input in the Linux kernel's netfilter subsystem. A local user can trigger out-of-bounds write to escalate privileges on the system.

Mitigation

Update the affected package linux-oem-5.17 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.17.0-1011-oem (Ubuntu package): before 5.17.0-1011.12

linux-image-oem-22.04a (Ubuntu package): before 5.17.0.1011.10

linux-image-oem-22.04 (Ubuntu package): before 5.17.0.1011.10

External links

http://ubuntu.com/security/notices/USN-5471-1

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. However, proof of concept for this vulnerability is available.

7) Improper access control

EUVDB-ID: #VU63961

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21499

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

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

The vulnerability exists due to improper access restrictions to the kernel debugger when booted in secure boot environments. A local privileged user can bypass UEFI Secure Boot restrictions.

Mitigation

Update the affected package linux-oem-5.17 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.17.0-1011-oem (Ubuntu package): before 5.17.0-1011.12

linux-image-oem-22.04a (Ubuntu package): before 5.17.0.1011.10

linux-image-oem-22.04 (Ubuntu package): before 5.17.0.1011.10

External links

http://ubuntu.com/security/notices/USN-5471-1

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.

8) Improper Initialization

EUVDB-ID: #VU64091

Risk: Low

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-29968

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: Yes

Description

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

The vulnerability exists due to io_uring subsystem in the Linux kernel does not properly initialize data in some situations. A local user can run a specially crafted application to execute arbitrary code with escalated privileges on the system.

Mitigation

Update the affected package linux-oem-5.17 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.17.0-1011-oem (Ubuntu package): before 5.17.0-1011.12

linux-image-oem-22.04a (Ubuntu package): before 5.17.0.1011.10

linux-image-oem-22.04 (Ubuntu package): before 5.17.0.1011.10

External links

http://ubuntu.com/security/notices/USN-5471-1

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. However, proof of concept for this vulnerability is available.