Out-of-bounds Write 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
0.07% (22nd percentile)

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  • Snyk IDSNYK-ALMALINUX9-GRUB2PPC64LEMODULES-10590227
  • published3 Jul 2025
  • disclosed18 Sept 2025

Introduced: 3 Jul 2025

CVE-2024-45776  (opens in a new tab)
CWE-787  (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.

When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing secure boot protections.

CVSS Base Scores

version 3.1