CVE-2017-1000460 Null dereference in n/a

Medium 6.5 Published 3 Jan 2018 Updated 5 Aug 2024

A null pointer dereference in FFmpeg's H.264 decoder allows attackers to cause a denial of service via crafted media files.

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-2017-1000460?

CVE-2017-1000460 is a medium-severity vulnerability in Ffmpeg Ffmpeg, published on 3 Jan 2018. 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 line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init_get_bits is ignored and get_ue_golomb(&gb) is called on an uninitialized get_bits context, which causes a NULL deref exception.

Weakness: CWE-476

Which versions are affected by CVE-2017-1000460?

It affects 3 products.

Products include Ffmpeg Ffmpeg, Google Chrome, Libav Libav.

How do I fix CVE-2017-1000460?

Apply the vendor's patch.

Is CVE-2017-1000460 being exploited?

There is no known exploitation of CVE-2017-1000460 in the wild and no public exploit code.

All Ffmpeg Ffmpeg vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-1000460, GHSA-m7gw-r3vf-gf9w.