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Advisories

FreeRDP before 3.32.0 NULL Dereference via Zero-Length WebSocket Ping

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Severity
medium
Date
Affecting

  • FreeRDP >= 0, < 3.32.0

CWE
  • CWE-476 NULL Pointer Dereference
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
w226688
Description
FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocket_reply_pong passes a nullptr stream to websocket_reply_close, triggering an assertion failure that terminates the client process and causes denial of service.

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