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Advisories

FFmpeg through 9.0.2 Heap Buffer Overflow via RISC-V Vector diff_bytes Routine

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Severity
high
Date
Affecting

  • FFmpeg >= 7.0, <= 9.0.2

CWE
  • CWE-787 Out-of-bounds Write
CVSS
7.3
CVSS V4 Vector
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Joshua Rogers (AISLE Research), Michael Niedermayer
Description
FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in ff_llvidenc_diff_bytes_rvv() that allows attackers to corrupt heap memory by triggering negative length values in the Huffyuv encoder. Attackers can supply RGB video narrower than 8 or 16 pixels for huffyuv transcoding on RVV-enabled RISC-V builds, causing writes past the encoder's temp buffer.

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