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Details of issue NIXPKGS-2026-1670

NIXPKGS-2026-1670
published on
Permalink CVE-2026-42009
7.5 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): High (H)
updated 2 hours ago by @LeSuisse Activity log
  • Created suggestion 9 hours ago
  • @LeSuisse ignored
    4 packages
    • guile-gnutls
    • python312Packages.python3-gnutls
    • python313Packages.python3-gnutls
    • python314Packages.python3-gnutls
    2 hours ago
  • @LeSuisse accepted 2 hours ago
  • @LeSuisse published on GitHub 2 hours ago
Gnutls: gnutls: denial of service via dtls packet reordering vulnerability

A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS) packet reordering logic. The comparator function, responsible for ordering DTLS packets by sequence numbers, did not correctly handle packets with duplicate sequence numbers. This could lead to unstable packet ordering or undefined behavior, resulting in a denial of service.

References

Affected products

rhcos
gnutls

Matching in nixpkgs

Ignored packages (4)

Package maintainers

https://www.gnutls.org/security-new.html#GNUTLS-SA-2026-04-29-2

Fixed in 3.8.13.

Patches:
* https://gitlab.com/gnutls/gnutls/-/commit/f01e21441e29052a6f0963840794c41d3b3ee66d
* https://gitlab.com/gnutls/gnutls/-/commit/f341441fad91142897d83b44a175ffc8f925b76f