All errata/sisyphus/ALT-PU-2026-21872-1
ALT-PU-2026-21872-1

Package update libblockdev in branch sisyphus

Version3.6.0-alt1
Published2026-11-12
Max severityLOW
Severity:

Closed issues (1)

CVE-2026-111581
LOW3.3

A flaw was found in libblockdev. The bd_fs_ntfs_set_label() and bd_fs_vfat_set_label() functions pass caller-supplied label values as bare positional arguments to the ntfslabel and fatlabel utilities without end-of-options separators or input validation for values beginning with a dash. This allows a label starting with '-' to be interpreted as a command-line flag by the spawned tool, potentially bypassing safety checks or causing unintended operations. This is reachable by unprivileged local users through the udisks2 Filesystem.SetLabel() D-Bus method without administrator authentication.

Published: 2026-10-16Modified: 2026-11-06
CVSS 3.xLOW 3.3
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N