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Details of issue NIXPKGS-2026-1006

NIXPKGS-2026-1006
published on
Permalink CVE-2026-5745
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)
updated 1 month, 2 weeks ago by @LeSuisse Activity log
  • Created suggestion 1 month, 2 weeks ago
  • @LeSuisse ignored
    28 packages
    • libarchive-qt
    • haskellPackages.libarchive
    • kodiPackages.vfs-libarchive
    • perlPackages.ArchiveLibarchive
    • python312Packages.libarchive-c
    • python313Packages.libarchive-c
    • python314Packages.libarchive-c
    • haskellPackages.libarchive-clib
    • perl5Packages.ArchiveLibarchive
    • perl538Packages.ArchiveLibarchive
    • perl540Packages.ArchiveLibarchive
    • haskellPackages.archive-libarchive
    • haskellPackages.libarchive-conduit
    • perlPackages.ArchiveLibarchivePeek
    • perlPackages.TestArchiveLibarchive
    • perl5Packages.ArchiveLibarchivePeek
    • perl5Packages.TestArchiveLibarchive
    • perl538Packages.ArchiveLibarchivePeek
    • perl538Packages.TestArchiveLibarchive
    • perl540Packages.ArchiveLibarchivePeek
    • perl540Packages.TestArchiveLibarchive
    • perlPackages.ArchiveLibarchiveExtract
    • perl5Packages.ArchiveLibarchiveExtract
    • perl538Packages.ArchiveLibarchiveExtract
    • perl540Packages.ArchiveLibarchiveExtract
    • python312Packages.extractcode-libarchive
    • python313Packages.extractcode-libarchive
    • python314Packages.extractcode-libarchive
    1 month, 2 weeks ago
  • @LeSuisse accepted 1 month, 2 weeks ago
  • @LeSuisse published on GitHub 1 month, 2 weeks ago
Libarchive: a null pointer dereference vulnerability exists in the acl parser of libarchive

A flaw was found in libarchive. A NULL pointer dereference vulnerability exists in the ACL parsing logic, specifically within the archive_acl_from_text_nl() function. When processing a malformed ACL string (such as a bare "d" or "default" tag without subsequent fields), the function fails to perform adequate validation before advancing the pointer. An attacker can exploit this by providing a maliciously crafted archive, causing an application utilizing the libarchive API (such as bsdtar) to crash, resulting in a Denial of Service (DoS).

References

Affected products

rhcos
libarchive

Matching in nixpkgs

pkgs.libarchive

Multi-format archive and compression library

Ignored packages (28)

Package maintainers

Upstream issue: https://github.com/libarchive/libarchive/issues/2904