Buffer Overflow Affecting grub2-i386-pc package, versions <2.06-150400.11.55.2


Severity

Recommended
high

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-SLES154-GRUB2I386PC-8738772
  • published20 Feb 2025
  • disclosed19 Feb 2025

Introduced: 19 Feb 2025

CVE-2025-0689  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 grub2-i386-pc to version 2.06-150400.11.55.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-i386-pc package and not the grub2-i386-pc package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the read size from the disk is always smaller than the allocated buffer size which is not guaranteed. A crafted filesystem image may lead to a heap-based buffer overflow resulting in critical data to be corrupted, resulting in the risk of arbitrary code execution by-passing secure boot protections.

CVSS Base Scores

version 3.1