NULL Pointer Dereference Affecting shim-ia32 package, versions <0:15.8-4.el8_9.alma.1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.44% (37th percentile)

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  • Snyk IDSNYK-ALMALINUX8-SHIMIA32-6836459
  • published11 May 2024
  • disclosed18 Apr 2024

Introduced: 18 Apr 2024

CVE-2023-40546  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 shim-ia32 to version 0:15.8-4.el8_9.alma.1 or higher.
This issue was patched in ALSA-2024:1902.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shim-ia32 package and not the shim-ia32 package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.

CVSS Base Scores

version 3.1