Buffer Underflow Affecting edk2-tools package, versions <0:20240813-296.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.21% (60th percentile)

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  • Snyk IDSNYK-AMZN2-EDK2TOOLS-8545550
  • published20 Dec 2024
  • disclosed3 Mar 2022

Introduced: 3 Mar 2022

CVE-2021-38578  (opens in a new tab)
CWE-124  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 edk2-tools to version 0:20240813-296.amzn2 or higher.
This issue was patched in ALAS2-2024-2722.

NVD Description

Note: Versions mentioned in the description apply only to the upstream edk2-tools package and not the edk2-tools package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.

CVSS Scores

version 3.1