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Details of issue NIXPKGS-2026-0635

NIXPKGS-2026-0635
published on 15 Mar 2026
Permalink CVE-2026-29775
5.3 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): NONE
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): NONE
  • Availability impact (A): LOW
updated 2 weeks, 2 days ago by @LeSuisse Activity log
  • Created automatic suggestion 2 weeks, 4 days ago
  • @LeSuisse accepted 2 weeks, 2 days ago
  • @LeSuisse published on GitHub 2 weeks, 2 days ago
FreeRDP has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, a client-side heap out-of-bounds read/write occurs in FreeRDP's bitmap cache subsystem due to an off-by-one boundary check in bitmap_cache_put. A malicious server can send a CACHE_BITMAP_ORDER (Rev1) with cacheId equal to maxCells, bypassing the guard and accessing cells[] one element past the allocated array. This vulnerability is fixed in 3.24.0.

References

Affected products

FreeRDP
  • ==< 3.24.0

Matching in nixpkgs

Package maintainers

Upstream advisory: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h666-rfw3-jhvj
Upstream patch: https://github.com/FreeRDP/FreeRDP/commit/ffad58fd2b329efd81a3239e9d7e3c927b8e503f