Integer Overflow or Wraparound Affecting grub2-powerpc-ieee1275 package, versions <2.04-150300.22.52.3


Severity

Recommended
high

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-SLES153-GRUB2POWERPCIEEE1275-8743752
  • published22 Feb 2025
  • disclosed20 Feb 2025

Introduced: 20 Feb 2025

CVE-2025-0678  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 grub2-powerpc-ieee1275 to version 2.04-150300.22.52.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-powerpc-ieee1275 package and not the grub2-powerpc-ieee1275 package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

A flaw was found in grub2. When reading data from a squash4 filesystem, grub's squash4 fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the direct_read() will perform a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution, by-passing secure boot protections.

CVSS Base Scores

version 3.1