CVE-2023-39355
FreeRDP Use-After-Free in RDPGFX_CMDID_RESETGRAPHICS
CRITICAL 9.8EPSS 1.3%
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Versions of FreeRDP on the 3.x release branch before beta3 are subject to a Use-After-Free in processing `RDPGFX_CMDID_RESETGRAPHICS` packets. If `context->maxPlaneSize` is 0, `context->planesBuffer` will be freed. However, without updating `context->planesBuffer`, this leads to a Use-After-Free exploit vector. In most environments this should only result in a crash. This issue has been addressed in version 3.0.0-beta3 and users of the beta 3.x releases are advised to upgrade. There are no known workarounds for this vulnerability.
- Affected
- FreeRDP
- CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 GITHUB
- 7.0 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H - EPSS
- 1.27% chance of exploitation in the next 30 days, 69th percentile
- Published
- 2023-08-31
- Updated
- 2025-02-13
Proof-of-concept exploits (1)
Security advisories
- https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
- FreeRDP/FreeRDP/commit/d6f9d33a7db0b346195b6a15b5b99944ba41beee