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Advisories

FFmpeg before 8.1.3 HLS Demuxer Infinite Loop via Self-Referencing Playlist

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severity
high
date
Affecting

  • FFmpeg >= 0, < 8.1.3

CWE
  • CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
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
BapToutatis
Description
FFmpeg before 8.1.3 contains an infinite loop vulnerability in the HLS demuxer that allows remote attackers to cause denial of service because parse_playlist() accepts Master Playlist tags inside Media Playlists. Attackers can trick victims into opening a crafted self-referencing playlist that endlessly adds variants in hls_read_header(), causing unbounded CPU and I/O consumption.

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