CVE-2023-39355

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.

CVSS v3.1

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1

7.0 HIGHCVSS: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, 68th percentile

Published

2023-08-31

Updated

2025-02-13

Proof-of-concept exploits (1)

• FreeRDP/FreeRDP/security/advisories/GHSA-hvwj-vmg6-2f5h

References

• CVE Record
• NVD entry

Related

• CVE-2023-39350
• CVE-2023-39351
• CVE-2023-39352
• CVE-2023-39353
• CVE-2023-39354
• CVE-2023-39356