Use After Free Affecting grub2-ppc64le-modules package, versions <1:2.06-104.el9_6.alma.1


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.08% (25th percentile)

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  • Snyk IDSNYK-ALMALINUX9-GRUB2PPC64LEMODULES-10590272
  • published3 Jul 2025
  • disclosed18 Sept 2025

Introduced: 3 Jul 2025

CVE-2025-0622  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 grub2-ppc64le-modules to version 1:2.06-104.el9_6.alma.1 or higher.
This issue was patched in ALSA-2025:6990.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2-ppc64le-modules package and not the grub2-ppc64le-modules package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A flaw was found in command/gpg. In some scenarios, hooks created by loaded modules are not removed when the related module is unloaded. This flaw allows an attacker to force grub2 to call the hooks once the module that registered it was unloaded, leading to a use-after-free vulnerability. If correctly exploited, this vulnerability may result in arbitrary code execution, eventually allowing the attacker to bypass secure boot protections.

CVSS Base Scores

version 3.1