Stack-based Buffer Overflow Affecting torvalds/linux package, versions [,6.5-rc5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-5837084
  • published10 Aug 2023
  • disclosed9 Aug 2023
  • creditUnknown

Introduced: 9 Aug 2023

CVE-2023-4273  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.5-rc5 or higher.

Overview

Affected versions of this package are vulnerable to Stack-based Buffer Overflow. 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 Base Scores

version 3.1