SB20261029112 - openEuler 22.03 LTS SP4 update for util-linux

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Main Vulnerability Database SB20261029112

SB20261029112 - openEuler 22.03 LTS SP4 update for util-linux

Published: October 29, 2026

Security Bulletin ID SB20261029112
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) Integer overflow (CVE-ID: CVE-2026-53615)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service and overwrite critical disk structures.

The vulnerability exists due to integer overflow or wraparound in parse_dos_extended() in libblkid/src/partitions/dos.c when parsing a crafted disk image or removable media containing malicious EBR partition entries. A remote attacker can provide a specially crafted disk image or removable media to cause a denial of service and overwrite critical disk structures.

The issue can cause a wrapped partition start value to be registered as sector 0, which may lead downstream consumers to treat the MBR as a valid partition.


Remediation

Install update from vendor's website.

References