CVE-2023-39355 HIGH

CVE-2023-39355: FreeRDP Use-After-Free in RDPGFX_CMDID_RESETGRAPHICS

Vendor Freerdp
Product FreeRDP
Weakness CWE-416
Published August 31, 2023
Last update February 13, 2025
View on NVD All CVEs

CVSS base score

7.0/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 31, 2023 CVE published
February 13, 2025 Record updated