CVE-2023-39353

Medium

Description

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.

SeverityMedium
CVSS5.3
Exploit probability—
ProductFreerdp
PublishedAug 31, 2023
First seenAug 31, 2023

How to fix

Update
  • freerdp freerdp2.11.0 or later

Affected products

ProductAffected versionsFixed in
freerdp freerdpv < 2.11.0, 3.0.02.11.0
debian debian_linux10.0—
fedoraproject fedora37, 38, 39—

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