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Details of issue NIXPKGS-2025-0021

NIXPKGS-2025-0021
published on
Permalink CVE-2025-61664
4.9 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): Low (L)
  • Integrity (I): Low (L)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): Low (L)
updated 5 months, 1 week ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored
    2 packages
    • grub2_pvgrub_image
    • grub2_pvhgrub_image
  • @LeSuisse deleted maintainer @SigmaSquadron maintainer.delete
  • @LeSuisse added
    3 maintainers
    • @hehongbo
    • @digitalrane
    • @CertainLach
    maintainer.add
  • @LeSuisse deleted
    3 maintainers
    • @hehongbo
    • @digitalrane
    • @CertainLach
    maintainer.delete
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
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.

References

Affected products

grub2
  • =<2.14
rhcos
Ignored packages (2)

pkgs.grub2_pvgrub_image

PvGrub2 image for booting PV Xen guests

  • nixos-unstable -
    • nixpkgs-unstable
    • nixos-unstable-small

pkgs.grub2_pvhgrub_image

PvGrub2 image for booting PVH Xen guests

  • nixos-unstable -
    • nixpkgs-unstable
    • nixos-unstable-small