Input validation error in ffmpeg.sourceforge.net FFmpeg

1) Input validation error

EUVDB-ID: #VU33776

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-14059

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

In FFmpeg 3.3.3, a DoS in cine_read_header() due to lack of an EOF check might cause huge CPU and memory consumption. When a crafted CINE file, which claims a large "duration" field in the header but does not contain sufficient backing data, is provided, the image-offset parsing loop would consume huge CPU and memory resources, since there is no EOF check inside the loop.

Mitigation

Install update from vendor's website.

Vulnerable software versions

FFmpeg: 0.29

CPE2.3

• cpe:2.3:a:ffmpeg_sourceforge_net:ffmpeg:0.29:*:*:*:*:*:*:*

External links

https://www.debian.org/security/2017/dsa-3996
https://www.securityfocus.com/bid/100631
https://github.com/FFmpeg/FFmpeg/commit/7e80b63ecd259d69d383623e75b318bf2bd491f6

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.