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

Weakness classification (CWE)

Public proof-of-concept exploits

References

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.