Out-of-bounds Write Affecting grub2-pc-modules package, versions <1:2.06-61.amzn2023.0.16


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.03% (6th percentile)

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  • Snyk IDSNYK-AMZN2023-GRUB2PCMODULES-9692363
  • published15 Apr 2025
  • disclosed18 Feb 2025

Introduced: 18 Feb 2025

CVE-2024-45781  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 grub2-pc-modules to version 1:2.06-61.amzn2023.0.16 or higher.
This issue was patched in ALAS2023-2025-937.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-pc-modules package and not the grub2-pc-modules package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.

CVSS Base Scores

version 3.1