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Advisories

FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr

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severity
critical
date
Affecting

  • FreeRDP >= 0, < 3.29.0

CWE
  • CWE-122 Heap-based Buffer Overflow
CVSS
9.4
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Credit
hyperlyz
Description
FreeRDP Windows client before 3.29.0 contains a heap buffer overflow vulnerability in the clipboard virtual channel when processing CLIPRDR_FILE_CONTENTS_RESPONSE PDUs without validating the server-provided size against the destination buffer. A malicious RDP server can send a response with a data payload significantly larger than requested, causing arbitrary heap memory corruption that may enable remote code execution when a user performs a paste operation.

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