Use After Free in FreeBSD
CVE-2022-23090
The aio_aqueue function, used by the lio_listio system call, fails to release a reference to a credential in an error case. An attacker may cause the reference count to overflow, leading to a use after free (UAF).
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.002 (11.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- FreeBSD — versions 12.3-RELEASE, 13.0-RELEASE, 13.1-RELEASE
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.freebsd.org/advisories/FreeBSD-SA-22:10.aio.asc (vendor-advisory, Vendor Advisory)
- security.netapp.com/advisory/ntap-20240415-0007/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-23090?
- CVE-2022-23090 is a high-severity vulnerability in FreeBSD, classified under Use After Free. CVSS score: 7.7/10. Published 2024-02-15.
- How severe is CVE-2022-23090?
- High severity. CVSS v3 base score is 7.7 out of 10.
- Is CVE-2022-23090 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.