CVE-2022-2585

Published: Jan 8, 2024Modified: Jun 17, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

It was discovered that when exec'ing from a non-leader thread, armed POSIX CPU timers would be left on a list but freed, leading to a use-after-free.

Affected (6)

Products: Linux: Linux Kernel · Canonical: Ubuntu Linux

1 product

1 product

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	5.11 ≤ version < 5.15.61
Linux Linux Kernel	5.16 ≤ version < 5.18.18
Linux Linux Kernel	5.19 ≤ version < 5.19.2
Linux Linux Kernel	5.7 ≤ version < 5.10.137

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 20.04
Canonical Ubuntu Linux	Version 22.04

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (14)

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2585

Source: security@ubuntu.com

Third Party Advisory

https://lore.kernel.org/lkml/20220809170751.164716-1-cascardo@canonical.com/T/#u

Source: security@ubuntu.com

Mailing ListPatch

https://ubuntu.com/security/notices/USN-5564-1

Source: security@ubuntu.com

Third Party Advisory

https://ubuntu.com/security/notices/USN-5565-1

Source: security@ubuntu.com

Third Party Advisory

https://ubuntu.com/security/notices/USN-5566-1

Source: security@ubuntu.com

Third Party Advisory

https://ubuntu.com/security/notices/USN-5567-1

Source: security@ubuntu.com

Third Party Advisory

https://www.openwall.com/lists/oss-security/2022/08/09/7

Source: security@ubuntu.com

Mailing List

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2585