CVE-2023-40576

Published: Aug 31, 2023Modified: Jun 17, 2026

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an Out-Of-Bounds Read in the `RleDecompress` function. This Out-Of-Bounds Read occurs because FreeRDP processes the `pbSrcBuffer` variable without checking if it contains data of sufficient length. Insufficient data in the `pbSrcBuffer` variable may cause errors or crashes. This issue has been addressed in version 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this issue.

Affected (2)

Products: Freerdp: Freerdp

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Freerdp Freerdp	Version 3.0.0 beta1
Freerdp Freerdp	Version 3.0.0 beta2

Related CWEs

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (6)

https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/include/bitmap.c#L94-L113

Source: security-advisories@github.com

Issue Tracking

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-x3x5-r7jm-5pq2

Source: security-advisories@github.com

ExploitVendor Advisory

https://security.gentoo.org/glsa/202401-16

Source: security-advisories@github.com

https://github.com/FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/include/bitmap.c#L94-L113

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-x3x5-r7jm-5pq2

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitVendor Advisory

https://security.gentoo.org/glsa/202401-16

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.