Time-of-check Time-of-use (TOCTOU) Affecting uuidd package, versions <2.41.1-160000.5.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.12% (2nd percentile)

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  • Snyk IDSNYK-SLES1600-UUIDD-20187334
  • published28 Sept 2026
  • disclosed22 Sept 2026

Introduced: 22 Sep 2026

NewCVE-2026-53612  (opens in a new tab)
CWE-367  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 uuidd to version 2.41.1-160000.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream uuidd package and not the uuidd package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID mount utility's hook_owner.c post-mount hook performs path-based chmod() and lchown() operations on a previously validated mount target. A local low-privileged user authorized by an /etc/fstab entry with user or users and an X-mount.mode, X-mount.owner, or X-mount.group option can use renameat2(RENAME_EXCHANGE) to race a writable ancestor of the target and redirect the privileged ownership or mode change to a root-owned path, potentially gaining root privileges. This issue is fixed in 2.41.5 and 2.42.2.

CVSS Base Scores

version 3.1