Excessive Iteration Affecting ffmpeg4 package, versions <3.3.4-r0
Threat Intelligence
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Test your applications- Snyk IDSNYK-ALPINE320-FFMPEG4-7009696
- published23 May 2024
- disclosed7 Sept 2017
Introduced: 7 Sep 2017
CVE-2017-14171 (opens in a new tab)How to fix?
Upgrade Alpine:3.20 ffmpeg4 to version 3.3.4-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ffmpeg4 package and not the ffmpeg4 package as distributed by Alpine.
See How to fix? for Alpine:3.20 relevant fixed versions and status.
In libavformat/nsvdec.c in FFmpeg 2.4 and 3.3.3, a DoS in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted NSV file, which claims a large "table_entries_used" field in the header but does not contain sufficient backing data, is provided, the loop over 'table_entries_used' would consume huge CPU resources, since there is no EOF check inside the loop.
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14171
- http://www.debian.org/security/2017/dsa-3996
- https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
- https://security-tracker.debian.org/tracker/CVE-2017-14171
- https://github.com/FFmpeg/FFmpeg/commit/c24bcb553650b91e9eff15ef6e54ca73de2453b7
- http://www.securityfocus.com/bid/100706
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-14171