Denial of service in FFmpeg

Published: 2018-07-23

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-14395 CVE-2018-14394
CWE-ID	CWE-369
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	FFmpeg Universal components / Libraries / Libraries used by multiple products
Vendor	ffmpeg.sourceforge.net

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Divide-by-zero

EUVDB-ID: #VU13983

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-14395

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to cause DoS condition.

The vulnerability exists due to boundary error when the mov_write_audio_tag() function, as defined in the libavformat/movenc.c source code file of the affected software, is used. A remote attacker can trick the victim into opening a specially crafted audio file that submits malicious input, trigger a divide-by-zero error and cause the service to crash.

Mitigation

Update to version 4.0.2.

Vulnerable software versions

FFmpeg: 0.3 - cvs

CPE2.3

External links

http://github.com/FFmpeg/FFmpeg/commit/fa19fbcf712a6a6cc5a5cfdc3254a97b9bce6582

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.

2) Divide-by-zero

EUVDB-ID: #VU13984