High advisory for FreeRDP 3.0.0

Advisory overview

FreeRDP 3.0.0 before 3.32.2 server-side RDP peer input parsing skips the six-byte body of a slow-path input event with an unknown message type without checking it lies within the packet's declared length, causing a WinPR stream assertion failure. A remote RDP client with an active session can send a truncated unknown input event to abort assertion-enabled server processes, causing denial of service.

Related references

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4qq4-qwxq-49m8
• https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.2-denial-of-service-via-slow-path-input-event
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4qq4-qwxq-49m8