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Advisories

librtmp (RTMPDump) through 2.6 Heap Out-of-Bounds Write via AMF3_Decode

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Severity
medium
Date
Affecting

  • librtmp <= 2.6

CWE
  • CWE-787 Out-of-bounds Write
CVSS
6.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Credit
HaiND from the Post and Telecommunication Institute of Technology
Description
librtmp in RTMPDump through 2.6 contains an out-of-bounds read and heap out-of-bounds write vulnerability because AMF3_Decode ignores AMF3 property decode failures. Malicious RTMP servers or man-in-the-middle attackers can send oversized AMF3 string lengths, and with the token option DecodeTEA corrupts heap memory and leaks heap bytes.

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