Ubuntu update for linux-hwe-5.19



Published: 2023-03-28 | Updated: 2023-03-30
Risk Medium
Patch available YES
Number of vulnerabilities 9
CVE-ID CVE-2022-2196
CVE-2022-42328
CVE-2022-42329
CVE-2022-4382
CVE-2023-0045
CVE-2023-0266
CVE-2023-0469
CVE-2023-1195
CVE-2023-23559
CWE-ID CWE-665
CWE-399
CWE-416
CWE-254
CWE-190
Exploitation vector Network
Public exploit Public exploit code for vulnerability #5 is available.
Vulnerability #6 is being exploited in the wild.
Vulnerable software
Subscribe 		Ubuntu
Operating systems & Components / Operating system

linux-image-5.19.0-38-generic (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.19.0-38-generic-64k (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-5.19.0-38-generic-lpae (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-virtual-hwe-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 9 vulnerabilities.

1) Improper Initialization

EUVDB-ID: #VU74019

Risk: Low

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

CVE-ID: CVE-2022-2196

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

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

The vulnerability exists due to improper initialization within nVMX in Linux kernel. A local user can perform speculative execution attacks and escalate privileges on the system.

Mitigation

Update the affected package linux-hwe-5.19 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.19.0-38-generic (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-5.19.0-38-generic-64k (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-5.19.0-38-generic-lpae (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

External links

http://ubuntu.com/security/notices/USN-5979-1


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) Resource management error

EUVDB-ID: #VU70469

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-42328

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources. An attacker with access to the guest OS can trigger deadlock in Linux netback driver and perform a denial of service (DoS) attack of the host via the paravirtualized network interface.

Mitigation

Update the affected package linux-hwe-5.19 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.19.0-38-generic (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-5.19.0-38-generic-64k (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-5.19.0-38-generic-lpae (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

External links

http://ubuntu.com/security/notices/USN-5979-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Resource management error

EUVDB-ID: #VU70470

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-42329

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources. An attacker with access to the guest OS can trigger deadlock in Linux netback driver and perform a denial of service (DoS) attack of the host via the paravirtualized network interface.

Mitigation

Update the affected package linux-hwe-5.19 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.19.0-38-generic (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-5.19.0-38-generic-64k (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-5.19.0-38-generic-lpae (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

External links

http://ubuntu.com/security/notices/USN-5979-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

4) Use-after-free

EUVDB-ID: #VU72328

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-4382

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows an attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the gadgetfs Linux driver. An attacker with physical access to the system can trigger a use-after-free by manipulating the external device with gadgetfs and execute arbitrary code.

Mitigation

Update the affected package linux-hwe-5.19 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.19.0-38-generic (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-5.19.0-38-generic-64k (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-5.19.0-38-generic-lpae (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

External links

http://ubuntu.com/security/notices/USN-5979-1


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

5) Security features bypass

EUVDB-ID: #VU72469

Risk: Low

CVSSv3.1: 2.6 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-0045

CWE-ID: CWE-254 - Security Features

Exploit availability: Yes

Description

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

The vulnerability exists due to Linux kernel does not correctly mitigate SMT attacks. A local user can bypass Spectre-BTI user space mitigations and gain access to sensitive information.

Mitigation

Update the affected package linux-hwe-5.19 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.19.0-38-generic (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-5.19.0-38-generic-64k (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-5.19.0-38-generic-lpae (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

External links

http://ubuntu.com/security/notices/USN-5979-1


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) Use-after-free

EUVDB-ID: #VU71482

Risk: High

CVSSv3.1: 8.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-0266

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 within the snd_ctl_elem_read() function in the Linux kernel sound subsystem. A local user can trigger a use-after-free error and execute arbitrary code on the system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Update the affected package linux-hwe-5.19 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.19.0-38-generic (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-5.19.0-38-generic-64k (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-5.19.0-38-generic-lpae (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

External links

http://ubuntu.com/security/notices/USN-5979-1


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?

Yes. This vulnerability is being exploited in the wild.

7) Use-after-free

EUVDB-ID: #VU72744

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-2023-0469

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error during the cleanup call within the io_install_fixed_file() function in io_uring/filetable.c. A local user can trigger a use-after-free error and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-hwe-5.19 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.19.0-38-generic (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-5.19.0-38-generic-64k (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-5.19.0-38-generic-lpae (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

External links

http://ubuntu.com/security/notices/USN-5979-1


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) Use-after-free

EUVDB-ID: #VU73784

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-2023-1195

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the reconn_set_ipaddr_from_hostname() function in fs/cifs/connect.c in Linux kernel. A local user can perform a denial of service (DoS) attack.


Mitigation

Update the affected package linux-hwe-5.19 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.19.0-38-generic (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-5.19.0-38-generic-64k (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-5.19.0-38-generic-lpae (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

External links

http://ubuntu.com/security/notices/USN-5979-1


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: #VU72468

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-2023-23559

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow within the rndis_query_oid() function in drivers/net/wireless/rndis_wlan.c. A local user can trigger an integer overflow and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-hwe-5.19 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.19.0-38-generic (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-5.19.0-38-generic-64k (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-generic-64k-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-5.19.0-38-generic-lpae (Ubuntu package): before 5.19.0-38.39~22.04.1

linux-image-generic-lpae-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

linux-image-virtual-hwe-22.04 (Ubuntu package): before 5.19.0.38.39~22.04.12

External links

http://ubuntu.com/security/notices/USN-5979-1


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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