CVE-2017-14056 Denial of service in n/a
A crafted RL2 file causes excessive CPU and memory consumption in FFmpeg due to missing EOF checks, 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-2017-14056?
CVE-2017-14056 is a medium-severity denial of service vulnerability in Ffmpeg Ffmpeg, published on 31 Aug 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/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted RL2 file, which claims a large "frame_count" field in the header but does not contain sufficient backing data, is provided, the loops (for offset and size tables) would consume huge CPU and memory resources, since there is no EOF check inside these loops.
Weakness: CWE-834
Which versions are affected by CVE-2017-14056?
It affects 1 product.
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2017-14056?
Upgrade to a fixed version.
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-2017-14056 being exploited?
There is no known exploitation of CVE-2017-14056 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as ALPINE-CVE-2017-14056, CLEANSTART-2024-MI06720, DEBIAN-CVE-2017-14056, GHSA-r5h2-24x5-fv2h, UBUNTU-CVE-2017-14056.