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Advisories

FreeRDP before 3.31.0 Out-of-bounds Write via SHOW_PROTOCOL

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severity
high
date
Affecting

  • FreeRDP >= 3.28.0, < 3.31.0

CWE
  • CWE-191 Integer Underflow (Wrap or Wraparound)
CVSS
7.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
sam4k
Description
FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in server-side static virtual channel handling when CHANNEL_OPTION_SHOW_PROTOCOL is enabled. Authenticated clients can queue oversized channel messages that cause buffer underflow and corrupt heap memory including live pointers, potentially enabling code execution.

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