CVE-2023-40188
Out-Of-Bounds Read in FreeRDP
CRITICAL 9.1EPSS 1.5%
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 `general_LumaToYUV444` function. This Out-Of-Bounds Read occurs because processing is done on the `in` variable without checking if it contains data of sufficient length. Insufficient data for the `in` variable may cause errors or crashes. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this issue.
- Affected
- FreeRDP
- CVSS v3.1 NVD
- 9.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - CVSS v3.1 GITHUB
- 5.3 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - EPSS
- 1.48% chance of exploitation in the next 30 days, 73rd percentile
- Published
- 2023-08-31
- Updated
- 2025-11-03
Proof-of-concept exploits (1)
Security advisories
- https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
- FreeRDP/FreeRDP/blob/5be5553e0da72178a4b94cc1ffbdace9ceb153e5/libfreerdp/codec/nsc.c#L115…