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Advisories

FFmpeg 0.10 through 9.0.2 Uninitialized Memory Disclosure via Sun Raster Decoder

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Severity
medium
Date
Affecting

  • FFmpeg >= 0.10, <= 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 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.

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