Vulnerability in Ffmpeg
CVE-2017-14171
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Ffmpeg — versions 3.3.3
Weakness classification (CWE)
References
- github.com/FFmpeg/FFmpeg/commit/c24bcb553650b91e9eff15ef6e54ca73de2453b7 (Patch, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/100706 (vdb-entry)
- lists.debian.org/debian-lts-announce/2019/01/msg00006.html (mailing-list)
- www.debian.org/security/2017/dsa-3996 (vendor-advisory)
Frequently asked questions
- What is CVE-2017-14171?
- CVE-2017-14171 is a medium-severity vulnerability in Ffmpeg, classified under Excessive Iteration. CVSS score: 6.5/10. Published 2017-09-07.
- How severe is CVE-2017-14171?
- Medium severity. CVSS v3 base score is 6.5 out of 10.