CVE-2023-39355

Published: 1 September 2023

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.

Status

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39355
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hvwj-vmg6-2f5h
• https://github.com/FreeRDP/FreeRDP/commit/d6f9d33a7db0b346195b6a15b5b99944ba41beee
• NVD
• Launchpad
• Debian