CVE-2023-4385

MediumCVSS 5.5

Published: 16/08/2023(UTC)Updated: 17/06/2026(UTC)Translated: 19/06/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.22%

12th percentile - higher than 12% of all known CVEs

Summary

A NULL pointer dereference flaw was found in dbFree in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.

Risk Assessment

A local attacker may exploit this vulnerability to destabilize the system, potentially leading to service availability interruptions.

Recommendation

It is recommended to update the Linux kernel to the latest version to mitigate this vulnerability and implement additional system monitoring mechanisms.

Original NVD description (English source)

A NULL pointer dereference flaw was found in dbFree in fs/jfs/jfs_dmap.c in the journaling file system (JFS) in the Linux Kernel. This issue may allow a local attacker to crash the system due to a missing sanity check.