High severity7.0NVD Advisory· Published Aug 31, 2023· Updated Jun 17, 2026
CVE-2023-39355
CVE-2023-39355
Description
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.
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Affected products
5Patches
Vulnerability mechanics
References
4- github.com/FreeRDP/FreeRDP/commit/d6f9d33a7db0b346195b6a15b5b99944ba41beeenvdPatch
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hvwj-vmg6-2f5hnvdExploitVendor Advisory
- lists.debian.org/debian-lts-announce/2023/10/msg00008.htmlnvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202401-16nvd
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