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Advisories

FFmpeg 2.7 - 8.1.2 Out-of-Bounds Write in TDSC Video Decoder

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severity
high
date
Affecting

  • FFmpeg >= 2.7, <= 8.1.2

CWE
  • CWE-787 Out-of-bounds Write
CVSS
8.5
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Adrian Junge (vurlo)
Description
FFmpeg versions 2.7 through 8.1.2 contain an out-of-bounds write vulnerability in the TDSC video decoder that allows remote attackers to cause heap corruption by supplying a crafted AVI file that changes frame dimensions across TDSF frames. The tdsc_parse_tdsf() function fails to unreference the existing reference frame before calling av_frame_get_buffer(), causing tdsc_blit() and tdsc_yuv2rgb() to write attacker-controlled pixel data beyond the end of the undersized reference frame buffer, resulting in a process crash and potential code execution.

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