CVE-2023-39353

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the `libfreerdp/codec/rfx.c` file there is no offset validation in `tile->quantIdxY`, `tile->quantIdxCb`, and `tile->quantIdxCr`. As a result crafted input can lead to an out of bounds read access which in turn will cause a 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.

CVSS v3.1

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

CVSS v3.1

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS

1.48% chance of exploitation in the next 30 days, 72th percentile

Published

2023-08-31

Updated

2025-11-03

Proof-of-concept exploits (1)

• FreeRDP/FreeRDP/security/advisories/GHSA-hg53-9j9h-3c8f

References

• CVE Record
• NVD entry

Related

• CVE-2023-39350
• CVE-2023-39351
• CVE-2023-39352
• CVE-2023-39354
• CVE-2023-39355
• CVE-2023-39356