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CVE-2023-2612

MEDIUMCVSS 4.7/10EPSS 0.28%

Last modified

CVE-2023-2612 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. 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 estimates a 0.28% chance of exploitation in the next 30 days.

Description

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).

Metrics

CVSS 3.1
4.7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.28%

20.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CanonicalUbuntu Linux20.04
CanonicalUbuntu Linux22.04
CanonicalUbuntu Linux22.10

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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).
How severe is CVE-2023-2612?
CVE-2023-2612 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.
How do I fix CVE-2023-2612?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-2612?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST