Use After Free in Linux Kernel
CVE-2022-2585
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.013 (68.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Linux Kernel
- The Linux Kernel Organization — versions 0
- Canonical Ubuntu Linux — versions 20.04, 22.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ubuntu.com/security/notices/USN-5566-1 (Third Party Advisory, third-party-advisory)
- ubuntu.com/security/notices/USN-5564-1 (Third Party Advisory, third-party-advisory)
- cve.mitre.org/cgi-bin/cvename.cgi (issue-tracking, Third Party Advisory)
- ubuntu.com/security/notices/USN-5567-1 (Third Party Advisory, third-party-advisory)
- lore.kernel.org/lkml/20220809170751.164716-1-cascardo@canonical.com/T/ (issue-tracking, Patch, Mailing List)
- www.openwall.com/lists/oss-security/2022/08/09/7 (issue-tracking, Mailing List)
- ubuntu.com/security/notices/USN-5565-1 (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2022-2585?
- CVE-2022-2585 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 5.3/10. Published 2024-01-08.
- How severe is CVE-2022-2585?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2022-2585 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.