CVE-2023-40187
Last modified
CVE-2023-40187 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.98% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Freerdp | Freerdp | 3.0.0 | Beta1 |
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pwf9-v5p9-ch4fExploit, Vendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pwf9-v5p9-ch4fExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-40187?
How severe is CVE-2023-40187?
How do I fix CVE-2023-40187?
Are you affected by CVE-2023-40187?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST