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CVE Vulnerabilities

CVE-2023-39351

NULL Pointer Dereference

Published: Aug 31, 2023 | Modified: Nov 03, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2023-39351
CWEhttps://cwe.mitre.org/data/definitions/476.html

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.

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

NameVendorStart VersionEnd Version
FreerdpFreerdp*2.11.0 (excluding)
FreerdpFreerdp3.0.0-beta1 (including)3.0.0-beta1 (including)
FreerdpFreerdp3.0.0-beta2 (including)3.0.0-beta2 (including)
Red Hat Enterprise Linux 9RedHatfreerdp-2:2.11.2-1.el9*
Freerdp2Ubuntubionic*
Freerdp2Ubuntudevel*
Freerdp2Ubuntuesm-infra/bionic*
Freerdp2Ubuntuesm-infra/focal*
Freerdp2Ubuntufocal*
Freerdp2Ubuntujammy*
Freerdp2Ubuntulunar*
Freerdp2Ubuntumantic*
Freerdp2Ubuntutrusty*
Freerdp2Ubuntuupstream*
Freerdp2Ubuntuxenial*

Potential Mitigations

References

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