NIXPKGS-2026-0086
GitHub issue
published on 23 Jan 2026
by @LeSuisse Activity log
- Created automatic suggestion
- @mweinelt accepted
- @LeSuisse removed maintainer @peterhoeg
- @LeSuisse published on GitHub
FreeRDP has heap-buffer-overflow in planar_decompress_plane_rle
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0,`freerdp_bitmap_decompress_planar` does not validate `nSrcWidth`/`nSrcHeight` against `planar->maxWidth`/`maxHeight` before RLE decode. A malicious server can trigger a client‑side heap buffer overflow, 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.
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r4hv-852m-fq7p x_refsource_CONFIRM
- https://github.com/FreeRDP/FreeRDP/blob/38514dfa5813aa945a86cfbcec279033f8394468/libfreerdp/codec/planar.c#L1689-L1696 x_refsource_MISC
- https://github.com/FreeRDP/FreeRDP/blob/38514dfa5813aa945a86cfbcec279033f8394468/libfreerdp/codec/planar.c#L1713-L1716 x_refsource_MISC
- https://github.com/FreeRDP/FreeRDP/blob/38514dfa5813aa945a86cfbcec279033f8394468/libfreerdp/codec/planar.c#L951-L953 x_refsource_MISC
- https://github.com/FreeRDP/FreeRDP/releases/tag/3.21.0 x_refsource_MISC
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r4hv-852m-fq7p x_refsource_CONFIRM
- https://github.com/FreeRDP/FreeRDP/blob/38514dfa5813aa945a86cfbcec279033f8394468/libfreerdp/codec/planar.c#L1689-L1696 x_refsource_MISC
- https://github.com/FreeRDP/FreeRDP/blob/38514dfa5813aa945a86cfbcec279033f8394468/libfreerdp/codec/planar.c#L1713-L1716 x_refsource_MISC
- https://github.com/FreeRDP/FreeRDP/blob/38514dfa5813aa945a86cfbcec279033f8394468/libfreerdp/codec/planar.c#L951-L953 x_refsource_MISC
- https://github.com/FreeRDP/FreeRDP/releases/tag/3.21.0 x_refsource_MISC
Affected products
FreeRDP
- ==< 3.21.0
Package maintainers
Ignored maintainers (1)
-
@peterhoeg Peter Hoeg <peter@hoeg.com>