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Advisories

FFmpeg through 9.0.2 CPU Exhaustion via dts2pts Bitstream Filter

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Severity
medium
Date
Affecting

  • FFmpeg <= 9.0.2

CWE
  • CWE-770 Allocation of Resources Without Limits or Throttling
CVSS
5.7
CVSS V4 Vector
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Joshua Rogers (AISLE Research), Michael Niedermayer
Description
FFmpeg through 9.0.2 contains an uncontrolled resource consumption vulnerability in the dts2pts bitstream filter that allows attackers to exhaust CPU through unbounded per-packet POC node allocation. Attackers can supply a crafted H.264 packet with many slices of alternating picture order counts, forcing h264_queue_frame() to allocate tree nodes per slice and deny service.

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