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Advisories

FFmpeg 2.1 through 9.0.2 Uninitialized Memory Leak via PCX Decoder

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Severity
medium
Date
Affecting

  • FFmpeg >= 2.1, <= 9.0.2

CWE
  • CWE-908 Use of Uninitialized Resource
CVSS
6.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Adrian Junge (vurlo)
Description
FFmpeg 2.1 through 9.0.2 contains a use of uninitialized resource vulnerability in the PCX decoder that allows attackers to leak heap memory through truncated RLE scanlines. Attackers can craft a PCX image whose RLE data ends early, causing pcx_decode_frame() to copy uninitialized av_malloc() buffer contents into visible decoded pixels.

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