Integer Overflow or Wraparound Affecting grub2-debugsource 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
0.04% (13th percentile)

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  • Snyk IDSNYK-AMZN2023-GRUB2DEBUGSOURCE-9692587
  • published15 Apr 2025
  • disclosed24 Feb 2025

Introduced: 24 Feb 2025

CVE-2025-0690  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 grub2-debugsource 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-debugsource package and not the grub2-debugsource package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it's possible to make this variable to overflow leading to a out-of-bounds write in the heap based buffer. This flaw may be leveraged to corrupt grub's internal critical data and secure boot bypass is not discarded as consequence.

CVSS Base Scores

version 3.1