Advisories

FreeRDP 3.32.0 Use-After-Free via drdynvc Virtual Channel PDU

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Severity
high
Date
Affecting
  • FreeRDP >= 3.32.0, < 3.32.1

CWE
  • CWE-416 Use After Free
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Michael-JRead
Description
FreeRDP 3.32.0 contains a use-after-free vulnerability in the drdynvc channel that frees a pool-owned stream with the owned-stream deallocator when totalLength is smaller than the chunk size. A malicious RDP server can send a single well-formed Virtual Channel PDU to trigger the free and crash the client during teardown.

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