Vulnerability in Ffmpeg
CVE-2017-14170
In libavformat/mxfdec.c in FFmpeg 3.3.3 -> 2.4, a DoS in mxf_read_index_entry_array() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted MXF file, which claims a large "nb_index_entries" field in the header but does not contain sufficient backing data, is provided, the loop would consume huge CPU resources, since there is no EOF check inside the loop. Moreover, this big loop can be invoked multiple times if there is more than one applicable data segment in the crafted MXF file.
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/900f39692ca0337a98a7cf047e4e2611071810c2 (Patch, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/100700 (vdb-entry)
- lists.debian.org/debian-lts-announce/2019/01/msg00006.html (mailing-list)
- www.debian.org/security/2017/dsa-3996 (vendor-advisory)
- github.com/FFmpeg/FFmpeg/commit/f173cdfe669556aa92857adafe60cbe5f2aa1210
Frequently asked questions
- What is CVE-2017-14170?
- CVE-2017-14170 is a medium-severity vulnerability in Ffmpeg, classified under Excessive Iteration. CVSS score: 6.5/10. Published 2017-09-07.
- How severe is CVE-2017-14170?
- Medium severity. CVSS v3 base score is 6.5 out of 10.