Buffer Overflow Affecting grub2-emu-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% (7th percentile)

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  • Snyk IDSNYK-AMZN2023-GRUB2EMUMODULES-9692766
  • published15 Apr 2025
  • disclosed3 Mar 2025

Introduced: 3 Mar 2025

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

How to fix?

Upgrade Amazon-Linux:2023 grub2-emu-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-emu-modules package and not the grub2-emu-modules package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 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