What is CVE-2023-40187?

CVE-2023-40187 is a Use-After-Free vulnerability in FreeRDP, specifically in the avc420_ensure_buffer and avc444_ensure_buffer functions.

How severe is CVE-2023-40187?

CVE-2023-40187 has a severity rating of 9.8 (Critical).

Which versions of FreeRDP are affected by CVE-2023-40187?

Versions 3.0.0-beta1 and 3.0.0-beta2 of FreeRDP are affected by CVE-2023-40187.

What is the CWE-ID associated with CVE-2023-40187?

The Common Weakness Enumeration (CWE) ID associated with CVE-2023-40187 is CWE-416.

How can the Use-After-Free vulnerability CVE-2023-40187 be fixed?

To fix the Use-After-Free vulnerability CVE-2023-40187, it is recommended to update to a patched version of FreeRDP.

Vulnerability/
CVE-2023-40187

critical

9.8

CWE

416

31/8/2023

12/1/2024

CVE-2023-40187: Use-After-Free in FreeRDP

First published: Thu Aug 31 2023(Updated: )

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.

Credit: security-advisories@github.com security-advisories@github.com

Affected Software	Affected Version	How to fix
	=3.0.0-beta1
	=3.0.0-beta2
FreeRDP FreeRDP	=3.0.0-beta1
FreeRDP FreeRDP	=3.0.0-beta2

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is CVE-2023-40187?
CVE-2023-40187 is a Use-After-Free vulnerability in FreeRDP, specifically in the avc420_ensure_buffer and avc444_ensure_buffer functions.
How severe is CVE-2023-40187?
CVE-2023-40187 has a severity rating of 9.8 (Critical).
Which versions of FreeRDP are affected by CVE-2023-40187?
Versions 3.0.0-beta1 and 3.0.0-beta2 of FreeRDP are affected by CVE-2023-40187.
What is the CWE-ID associated with CVE-2023-40187?
The Common Weakness Enumeration (CWE) ID associated with CVE-2023-40187 is CWE-416.
How can the Use-After-Free vulnerability CVE-2023-40187 be fixed?
To fix the Use-After-Free vulnerability CVE-2023-40187, it is recommended to update to a patched version of FreeRDP.

agent/author
agent/description
agent/event
agent/first-publish-date
agent/last-modified-date
agent/references
agent/severity
agent/softwarecombine
agent/tags
agent/title
agent/type
agent/weakness
collector/mitre-cve
source/MITRE
collector/nvd-api
source/NVD
agent/software-canonical-lookup
collector/nvd-index
vendor/freerdp
canonical/freerdp freerdp
version/freerdp freerdp/3.0.0-beta1
version/freerdp freerdp/3.0.0-beta2

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.