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Advisories

FFmpeg through 9.0.2 Heap Buffer Overflow in libwebp Encoder Conditional Replenishment

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Severity
high
Date
Affecting

  • FFmpeg <= 9.0.2

CWE
  • CWE-122 Heap-based Buffer Overflow
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 in ff_libwebp_get_frame() in libwebpenc_common.c that lets attackers corrupt memory when cr_threshold is set. Attackers can supply crafted media that increases resolution mid-stream, causing memcpy() to write pixel data past the stale reference frame and crash applications.

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