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Details of issue NIXPKGS-2026-0054

NIXPKGS-2026-0054
published on 20 Jan 2026
Permalink CVE-2026-23883
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created automatic suggestion 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Heap-use-after-free in update_pointer_new

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, `xf_Pointer_New` frees `cursorPixels` on failure, then `pointer_free` calls `xf_Pointer_Free` and frees it again, triggering ASan UAF. A malicious server can trigger a client‑side use after free, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.

Affected products

FreeRDP
  • ==< 3.21.0

Matching in nixpkgs

Package maintainers

Upstream advisory: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qcrr-85qx-4p6x