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Advisories

rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_raw_bmpcache

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Severity
high
Date
Affecting

  • rdesktop <= 1.9.0

CWE
  • CWE-125 Out-of-bounds Read
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
HaiND from the Post and Telecommunication Institute of Technology
Description
rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_raw_bmpcache() in orders.c that allows malicious RDP servers to crash clients. Attackers can send a raw bitmap cache order declaring large width, height, and bpp values with a tiny payload, causing memcpy() to read past the receive buffer and crash the client.

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