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Details of issue NIXPKGS-2025-0021

affected
published on 18 Dec 2025
CVE-2025-61664
4.9 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): LOCAL
  • Attack complexity (AC): HIGH
  • Privileges required (PR): NONE
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): LOW
  • Integrity impact (I): LOW
  • Availability impact (A): LOW
updated 4 days, 23 hours ago by @LeSuisse Activity log
  • Created automatic suggestion
  • @LeSuisse removed
    2 packages
    • grub2_pvgrub_image
    • grub2_pvhgrub_image
  • @LeSuisse removed maintainer @SigmaSquadron
  • @LeSuisse added
    3 maintainers
    • @hehongbo
    • @digitalrane
    • @CertainLach
  • @LeSuisse removed
    3 maintainers
    • @hehongbo
    • @digitalrane
    • @CertainLach
  • @LeSuisse accepted as draft
  • @LeSuisse update update
Grub2: missing unregister call for normal_exit command may lead to use-after-free

A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.

Affected products

grub2
rhcos

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