Use After Free in The Linux Kernel Organization
CVE-2022-2588
It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.
Vulnerability class: Use-After-Free
EPSS: 0.549 (98.1th percentile) — read the EPSS interpretation.
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.
Affected products
- The Linux Kernel Organization — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ubuntu.com/security/notices/USN-5565-1 (third-party-advisory)
- ubuntu.com/security/notices/USN-5562-1 (third-party-advisory)
- www.openwall.com/lists/oss-security/2022/08/09/6 (issue-tracking)
- ubuntu.com/security/notices/USN-5582-1 (third-party-advisory)
- cve.mitre.org/cgi-bin/cvename.cgi (issue-tracking)
- ubuntu.com/security/notices/USN-5564-1 (third-party-advisory)
- ubuntu.com/security/notices/USN-5566-1 (third-party-advisory)
- www.zerodayinitiative.com/advisories/ZDI-22-1117/ (issue-tracking)
- ubuntu.com/security/notices/USN-5588-1 (third-party-advisory)
- ubuntu.com/security/notices/USN-5560-1 (third-party-advisory)
Frequently asked questions
- What is CVE-2022-2588?
- CVE-2022-2588 is a medium-severity vulnerability in The Linux Kernel Organization, classified under Use After Free. CVSS score: 5.3/10. Published 2024-01-08.
- How severe is CVE-2022-2588?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2022-2588 known to be exploited?
- 68 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.