SB2026092178 - Anolis OS update for util-linux

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Main Vulnerability Database SB2026092178

SB2026092178 - Anolis OS update for util-linux

Published: September 21, 2026

Security Bulletin ID SB2026092178
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Detection of Error Condition Without Action (CVE-ID: CVE-2026-76642)

CWE-ID: CWE-390 - Detection of error condition without action

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to incorrect status handling in libmount post-mount hooks when processing a failed external mount helper. A local user can trigger a nonzero helper exit for a root-controlled fstab entry with X-mount.idmap to escalate privileges.

Exploitation requires SUID-root mount(8), a usable root-controlled fstab entry, a failed external mount helper, and an idmap-capable filesystem target.


Remediation

Install update from vendor's website.

References