Description
FreeRDP before 3.31.0 contains a heap out-of-bounds read vulnerability in the general_ChromaV1ToYUV444 function during AVC444 chroma plane reconstruction. A malicious RDP server can craft a RFX_AVC444_BITMAP_STREAM with specific frame geometry to trigger an out-of-bounds memory read past the allocated luma plane.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | 3.0.0 – < 3.31.0 | 3.31.0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | freerdp3 | 3.31.0+dfsg-1 | — |
| Debian 13 | freerdp3 | No fix yet | — |
| Debian 12 | freerdp2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | freerdp3 | 3.31.0+dfsg-0ubuntu0.26.04.1 | — |
| Ubuntu 24.04 LTS | freerdp3 | 3.31.0+dfsg-0ubuntu0.24.04.1 | — |
| Ubuntu 22.04 LTS | freerdp2 | No fix yet | — |
| Ubuntu 18.04 LTS | freerdp | No fix yet | — |
| Ubuntu 16.04 LTS | freerdp | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | freerdp2 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | freerdp2 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | freerdp2 | No fix yet | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | freerdp +5 | 2:3.31.0-1.amzn2023 | ALAS2023-2026-2142 |
| Amazon Linux 2 | freerdp +4 | 2:2.11.7-1.amzn2.0.16 | ALAS2-2026-3938 |
Advisories 3
- WID-SEC-2026-3057 FreeRDP: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 11, 2026
- ALAS2-2026-3938 Important: freerdp security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 28, 2026
- ALAS2023-2026-2142 Important: freerdp security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Sep 21, 2026
References
- GitHub Security Advisory (GHSA-57h7-vw2f-2f9x) vendor-advisory
- Patch Commit patch
- FreeRDP 3.31.0 Release Notes release-notes
- https://github.com/FreeRDP/FreeRDP/blob/3.30.0/libfreerdp/primitives/prim_YUV.c technical-description
- https://github.com/FreeRDP/FreeRDP product
- VulnCheck Advisory: FreeRDP before 3.31.0 Heap Out-of-Bounds Read via AVC444 third-party-advisory