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Advisories

FFmpeg through 9.0.2 Uncontrolled Recursion in FLAC Parser score_header()

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Severity
medium
Date
Affecting

  • FFmpeg <= 9.0.2

CWE
  • CWE-674 Uncontrolled Recursion
CVSS
6.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Joshua Rogers (AISLE Research), Michael Niedermayer
Description
FFmpeg through 9.0.2 contains an uncontrolled recursion vulnerability in score_header() in libavcodec/flac_parser.c that allows attackers to exhaust the thread stack via crafted FLAC input. Attackers can supply a FLAC stream packed with many small valid-looking frame headers, forcing deep recursion that crashes the process during demuxing or parsing.

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