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Details of issue NIXPKGS-2026-0004

NIXPKGS-2026-0004
published 4 months ago
Permalink CVE-2024-45781
6.7 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): High (H)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): High (H)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
updated 4 months ago by @fricklerhandwerk Activity log
  • Created suggestion 4 months ago
  • @fricklerhandwerk ignored package grub2_pvhgrub_image 4 months ago
  • @fricklerhandwerk accepted 4 months ago
  • @fricklerhandwerk published on GitHub 4 months ago
Grub2: fs/ufs: oob write in the heap

A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.

References

Affected products

grub2
  • *
  • =<2.12
rhcos

Matching in nixpkgs

pkgs.grub2_pvgrub_image

PvGrub2 image for booting PV Xen guests

  • nixos-25.11 -
    • nixpkgs-25.11-darwin
Ignored packages (1)

pkgs.grub2_pvhgrub_image

PvGrub2 image for booting PVH Xen guests

  • nixos-25.11 -
    • nixpkgs-25.11-darwin

Package maintainers