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Advisories

FFmpeg before 8.1.3 and 9.x before 9.0.2 Out-of-Bounds Read in Vorbis Encoder

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Severity
medium
Date
Affecting

  • FFmpeg >= 0, < 8.1.3

  • FFmpeg >= 9.0, < 9.0.2

CWE
  • CWE-125 Out-of-bounds Read
CVSS
5.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Joshua Rogers (AISLE Research), Michael Niedermayer
Description
FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an out-of-bounds read vulnerability in put_vector() in libavcodec/vorbisenc.c when NaN samples leave the codebook entry at -1. Attackers can supply audio with NaN float samples to the native Vorbis encoder, causing heap reads before arrays that crash the application or leak adjacent heap memory into output.

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