CVE-2023-39351

FreeRDP Null Pointer Dereference leading denial of service

Published Aug 31, 2023 CVSS 3.1 · 5.3 Medium EPSS 1.6% KEV · Not listed
Description
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.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-3606-1 freerdp2 security update
Debian DLA Debian DLA DLA-4053-1 freerdp2 security update
EUVD EUVD EUVD-2023-43077 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.
Ubuntu USN Ubuntu USN USN-6401-1 FreeRDP vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00108}

epss

{'score': 0.00099}

Type Values Removed Values Added
Metrics epss

{'score': 0.00163}

epss

{'score': 0.00108}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 3, 2025, 8:35 PM
Reserved
Jul 28, 2023, 1:26 PM
Status
Modified
Published
Aug 31, 2023, 8:15 PM
Modified
Jun 17, 2026, 6:12 AM
Severity
Moderate
Public date
Aug 31, 2023, 12:00 AM