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prionPRIOn knowledge basePRION:CVE-2023-39351
HistoryAug 31, 2023 - 8:15 p.m.

Null pointer dereference

2023-08-3120:15:00
PRIOn knowledge base
www.prio-n.com
6
freerdp
remote desktop protocol
rdp
apache license
null pointer dereference
remotefx
crash
rfx_process_message_tileset
rfx_allocate_tiles
upgrade
vulnerability

8.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

31.0%

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of FreeRDP are subject to a Null Pointer Dereference leading a crash in the RemoteFX (rfx) handling. Inside the rfx_process_message_tileset function, the program allocates tiles using rfx_allocate_tiles for the number of numTiles. If the initialization process of tiles is not completed for various reasons, tiles will have a NULL pointer. Which may be accessed in further processing and would cause a program crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.