CVE-2023-40187
CVSS 3.1 Score 9.8 of 10 (high)
Details
Published Aug 31, 2023
Updated: Jan 12, 2024
CWE ID 416
Summary
CVE-2023-40187 is a Use-After-Free vulnerability affecting the FreeRDP 3.x beta branch of the Remote Desktop Protocol (RDP) implementation. Specific functions, `avc420_ensure_buffer` and `avc444_ensure_buffer`, are the root cause. If `piDstSize[x]` is zero, `ppYUVDstData[x]` is freed, but in such cases, it has not been updated, leading to a Use-After-Free condition. No workarounds exist, and users of the 3.x beta releases are urged to upgrade to version 3.0.0-beta3 for mitigation.
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Affected Products
- FreeRDP
Affected Vendors
- Freerdp
Advisories, Assessments, and Mitigations
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