Nixpkgs security tracker

Login with GitHub

Details of issue NIXPKGS-2026-1590

NIXPKGS-2026-1590
published 4 weeks, 2 days ago
Permalink CVE-2026-44673
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 4 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 4 weeks, 2 days ago
  • @LeSuisse accepted 4 weeks, 2 days ago
  • @LeSuisse published on GitHub 4 weeks, 2 days ago
libyang: lyb_read_string() integer overflow → heap buffer overflow

libyang is a YANG data modeling language library. Prior to SO 5.2.15, lyb_read_string() in src/parser_lyb.c contains an integer overflow that results in a heap buffer overflow when parsing a maliciously crafted LYB binary blob. An attacker who can supply LYB data to any libyang consumer (NETCONF server, sysrepo, etc.) can trigger a crash or potential heap corruption. This vulnerability is fixed in SO 5.2.15.

Affected products

libyang
  • ==< SO 5.2.15

Matching in nixpkgs

pkgs.libyang

YANG data modelling language parser and toolkit

Package maintainers