Description

FreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients that use a version of FreeRDP prior to 3.5.0 or 2.11.6 and have connections to servers using the `NSC` codec are vulnerable to integer underflow. Versions 3.5.0 and 2.11.6 patch the issue. As a workaround, do not use the NSC codec (e.g. use `-nsc`).

Classification

CVE ID: CVE-2024-32040

CVSS Base Severity: HIGH

CVSS Base Score: 8.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor: FreeRDP

Product: FreeRDP

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.14% (probability of being exploited)

EPSS Percentile: 51.36% (scored less or equal to compared to others)

EPSS Date: 2025-03-14 (when was this score calculated)

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-23c5-cp23-h2h5
https://github.com/FreeRDP/FreeRDP/pull/10077
https://github.com/FreeRDP/FreeRDP/releases/tag/2.11.6
https://github.com/FreeRDP/FreeRDP/releases/tag/3.5.0
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZKI4UISUXYNBPN4K6TIQKDRTIJ6CDCKJ/
https://lists.fedoraproject.org/archives/list/[email protected]/message/7SIS6NUNLUBOV4CPCSWKDE6T6C2W3WTR/
https://lists.fedoraproject.org/archives/list/[email protected]/message/PX3U6YPZQ7PEJBVKSBUOLWVH7DHROHY5/
https://lists.fedoraproject.org/archives/list/[email protected]/message/5JL476WVJSIE7SBUKVJRVA6A52V2HOLZ/

Timeline