Out-of-bounds Write Affecting kernel-source package, versions <5.14.21-150500.55.22.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES155-KERNELSOURCE-5913281
  • published21 Sept 2023
  • disclosed21 Sept 2023

Introduced: 21 Sep 2023

CVE-2023-4273  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-source to version 5.14.21-150500.55.22.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-source package and not the kernel-source package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack.

CVSS Scores

version 3.1