Vulnerability in Canonical Ltd. Ubuntu-Linux
CVE-2023-2612
Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock).
EPSS: 0.003 (20.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Canonical Ltd. Ubuntu-linux — versions 0
- Canonical Ubuntu_linux — versions 20.04, 22.04, 22.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@ubuntu.com (Patch, Mailing List, patch)
- security@ubuntu.com (vendor-advisory, Vendor Advisory)
- security@ubuntu.com (vendor-advisory, Vendor Advisory)
- security@ubuntu.com (vendor-advisory, Vendor Advisory)
- security@ubuntu.com (vendor-advisory, Vendor Advisory)
- security@ubuntu.com (vendor-advisory, Vendor Advisory)
- security@ubuntu.com
Frequently asked questions
- What is CVE-2023-2612?
- CVE-2023-2612 is a medium-severity vulnerability in Canonical Ltd. Ubuntu-Linux, classified under Improper Locking. CVSS score: 4.4/10. Published 2023-05-31.
- How severe is CVE-2023-2612?
- Medium severity. CVSS v3 base score is 4.4 out of 10.
- Is CVE-2023-2612 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.