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Advisories

FreeRDP before 3.32.1 Heap Buffer Overflow via rdpsnd_server_select_format

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Severity
high
Date
Affecting

  • FreeRDP >= 0, < 3.32.1

CWE
  • CWE-122 Heap-based Buffer Overflow
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
HEXER365
Description
FreeRDP before 3.32.1 contains a heap-based buffer overflow in the server-side rdpsnd channel because an integer wraparound in rdpsnd_server_select_format() DVI_ADPCM block-alignment arithmetic bypasses validation. A malicious RDP client can send two SNDC_FORMATS PDUs with an nBlockAlign too small for nChannels, causing an unbounded heap write during server audio playback, potentially enabling code execution.

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