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CVE-2023-40187

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

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9.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of the 3.x beta branch are subject to a Use-After-Free issue in the `avc420_ensure_buffer` and `avc444_ensure_buffer` functions. If the value of `piDstSize[x]` is 0, `ppYUVDstData[x]` will be freed. However, in this case `ppYUVDstData[x]` will not have been updated which leads to a Use-After-Free vulnerability. This issue has been addressed in version 3.0.0-beta3. Users of the 3.x beta releases are advised to upgrade. There are no known workarounds for this vulnerability.

Affected (2)

Products: Freerdp: Freerdp
Freerdp
1 product
Freerdp
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Freerdp
Freerdp
Version 3.0.0 beta1
Freerdp
Version 3.0.0 beta2

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (6)

Source: security-advisories@github.com
Issue Tracking
Source: security-advisories@github.com
ExploitVendor Advisory
Source: security-advisories@github.com
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.