CVE-2022-2585 is a use-after-free vulnerability in the Linux kernel, affecting Canonical and generic Linux distributions. It occurs when POSIX CPU timers are freed but remain on a list after a non-leader thread executes, leading to memory corruption. With a CVSS score of 7.8 (High), this vulnerability can be exploited locally by a low-privileged user, potentially leading to high impact on confidentiality, integrity, and availability. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.7, < 5.10.137CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.11, < 5.15.61CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.16, < 5.18.18CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.19, < 5.19.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
20.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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.
Jan 9, 2024Linux kernel container breakout to root (CVE-2022-2585, CVE-2022-2588)
Jan 19, 2023kernel: posix cpu timer use-after-free may lead to local privilege escalation
Aug 9, 2022