Loop with Unreachable Exit Condition ('Infinite Loop') Affecting ffmpeg package, versions <7:7.1.5-0+deb13u1+e2


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-ECHOLATEST-FFMPEG-18234766
  • published23 Jul 2026
  • disclosed22 Jul 2026

Introduced: 22 Jul 2026

NewCVE-2026-64834  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Echo:latest ffmpeg to version 7:7.1.5-0+deb13u1+e2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ffmpeg package and not the ffmpeg package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

FFmpeg versions 0.6.3 through 8.1.2 contain an infinite loop vulnerability in the RTP/ASF demuxer within libavformat/rtpdec_asf.c that allows remote attackers to cause denial of service by sending a crafted RTP/ASF stream. The rtp_asf_fix_header function fails to validate a minimum chunksize when iterating over ASF objects, causing the loop pointer to never advance when a chunksize is smaller than the 24-byte minimum ASF object header size, resulting in CPU exhaustion that denies service to legitimate users.

CVSS Base Scores

version 3.1