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Permalink CVE-2026-62425
5.5 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): High (H)
created 1 month ago Activity log
  • Created suggestion 1 month ago
buffer overruns in libfsimage iso9660 handling

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The directory and Rock Ridge / SUSP walk in libfsimage's iso9660 driver derives several lengths directly from attacker-controlled on-disk fields without validating them: * The directory loop itself assumes a good record length. This is CVE-2026-42494. * The calculation of the System Use area may underflow. This is CVE-2026-42495. * The Rock Ridge extension loop assumes a good (inner) record length. This is CVE-2026-62423. * The Rock Ridge NM record processing assumes a good entry length. This is CVE-2026-62424. * The Rock Ridge CE record processing assumes a good size and offset. This is CVE-2026-62425.

Affected products

Xen
  • ==consult Xen advisory XSA-497

Matching in nixpkgs

pkgs.xen

Type-1 hypervisor intended for embedded and hyperscale use cases

  • nixos-unstable -
  • nixos-26.05 -

pkgs.xenon

Monitoring tool based on radon

  • nixos-unstable -
    • nixos-unstable-small 0.9.3
  • nixos-26.05 -
    • nixos-26.05-small 0.9.3

pkgs.hhexen

Linux port of Raven Game's Hexen

  • nixos-unstable -
    • nixos-unstable-small 1.6.4
  • nixos-26.05 -
    • nixos-26.05-small 1.6.4

pkgs.uhexen2

Cross-platform port of Hexen II game

  • nixos-unstable -
    • nixos-unstable-small 1.5.9
  • nixos-26.05 -
    • nixos-26.05-small 1.5.9

pkgs.OVMF-xen

Sample UEFI firmware for Xen guests

  • nixos-unstable -
  • nixos-26.05 -

pkgs.qemu_xen

Generic and open source machine emulator and virtualizer

  • nixos-unstable -
  • nixos-26.05 -

pkgs.xenomapper

Utility for post processing mapped reads that have been aligned to a primary genome and a secondary genome and binning reads into species specific, multimapping in each species, unmapped and unassigned bins

  • nixos-unstable -
    • nixos-unstable-small 1.0.2
  • nixos-26.05 -
    • nixos-26.05-small 1.0.2

pkgs.nxengine-evo

Complete open-source clone/rewrite of the masterpiece jump-and-run platformer Doukutsu Monogatari (also known as Cave Story)

  • nixos-unstable -
  • nixos-26.05 -

pkgs.grub2_pvgrub_image

PvGrub2 image for booting PV Xen guests

  • nixos-unstable -
    • nixos-unstable-small
  • nixos-26.05 -
    • nixos-26.05-small

pkgs.grub2_pvhgrub_image

PvGrub2 image for booting PVH Xen guests

  • nixos-unstable -
    • nixos-unstable-small
  • nixos-26.05 -
    • nixos-26.05-small

pkgs.haskellPackages.xeno

A fast event-based XML parser in pure Haskell

  • nixos-unstable -
    • nixos-unstable-small 0.6
  • nixos-26.05 -
    • nixos-26.05-small 0.6

pkgs.python313Packages.xen

Type-1 hypervisor intended for embedded and hyperscale use cases

  • nixos-unstable -
  • nixos-26.05 -

pkgs.python314Packages.xen

Type-1 hypervisor intended for embedded and hyperscale use cases

  • nixos-unstable -
  • nixos-26.05 -

pkgs.ocamlPackages.mirage-net-xen

Network device for reading and writing Ethernet frames via then Xen netfront/netback protocol

  • nixos-unstable -
    • nixos-unstable-small 2.1.3
  • nixos-26.05 -
    • nixos-26.05-small 2.1.3

pkgs.python313Packages.pylatexenc

Simple LaTeX parser providing latex-to-unicode and unicode-to-latex conversion

  • nixos-unstable -
    • nixos-unstable-small 2.10
  • nixos-26.05 -
    • nixos-26.05-small 2.10

pkgs.python314Packages.pylatexenc

Simple LaTeX parser providing latex-to-unicode and unicode-to-latex conversion

  • nixos-unstable -
    • nixos-unstable-small 2.10
  • nixos-26.05 -
    • nixos-26.05-small 2.10