Out-of-bounds Read Affecting shim-aa64 package, versions <0:15.8-4.el8_9


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-CENTOS8-SHIMAA64-6189324
  • published25 Jan 2024
  • disclosed23 Jan 2024

Introduced: 23 Jan 2024

CVE-2023-40549  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Centos:8 shim-aa64 to version 0:15.8-4.el8_9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim-aa64 package and not the shim-aa64 package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.

CVSS Scores

version 3.1