Use After Free in Linux Kernel
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
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: 0.059 (93.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.059 · newest: 0.059 · change: 0.000
Affected products
- Linux Kernel
- The Linux Kernel Organization — versions 0
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ubuntu.com/security/notices/USN-5565-1 (Third Party Advisory, third-party-advisory)
- ubuntu.com/security/notices/USN-5562-1 (Third Party Advisory, third-party-advisory)
- www.openwall.com/lists/oss-security/2022/08/09/6 (issue-tracking, Mailing List)
- ubuntu.com/security/notices/USN-5582-1 (Third Party Advisory, third-party-advisory)
- cve.mitre.org/cgi-bin/cvename.cgi (issue-tracking, Third Party Advisory)
- ubuntu.com/security/notices/USN-5564-1 (Third Party Advisory, third-party-advisory)
- ubuntu.com/security/notices/USN-5566-1 (Third Party Advisory, third-party-advisory)
- www.zerodayinitiative.com/advisories/ZDI-22-1117/ (issue-tracking, VDB Entry, Third Party Advisory)
- ubuntu.com/security/notices/USN-5588-1 (Third Party Advisory, third-party-advisory)
- ubuntu.com/security/notices/USN-5560-1 (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2022-2588?
- CVE-2022-2588 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-2022-2588?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2022-2588 known to be exploited?
- 69 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.