Out-of-bounds Read Affecting shim-x64 package, versions <0:15.8-4.el8_9


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-CENTOS8-SHIMX64-6189114
  • published25 Jan 2024
  • disclosed23 Jan 2024

Introduced: 23 Jan 2024

CVE-2023-40550  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Centos:8 shim-x64 to version 0:15.8-4.el8_9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim-x64 package and not the shim-x64 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 when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.

CVSS Base Scores

version 3.1