CVE-2017-14171 Denial of service in n/a
A crafted NSV file causes excessive CPU consumption in FFmpeg due to a missing EOF check, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-14171?
CVE-2017-14171 is a medium-severity denial of service vulnerability in Ffmpeg Ffmpeg, published on 7 Sep 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-834
Which versions are affected by CVE-2017-14171?
It affects 1 product.
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2017-14171?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-14171 being exploited?
There is no known exploitation of CVE-2017-14171 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as ALPINE-CVE-2017-14171, CLEANSTART-2024-AX01037, DEBIAN-CVE-2017-14171, GHSA-q3cf-46pw-53qv, UBUNTU-CVE-2017-14171.