CVE-2017-14055 Information

Description

In libavformat/mvdec.c in FFmpeg 3.3.3 a DoS in mv_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted MV file which claims a large \nb_frames\ field in the header but does not contain sufficient backing data is provided the loop over the frames would consume huge CPU and memory resources since there is no EOF check inside the loop.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

http://www.debian.org/security/2017/dsa-3996 http://www.securityfocus.com/bid/100626 https://github.com/FFmpeg/FFmpeg/commit/4f05e2e2dc1a89f38cd9f0960a6561083d714f1e https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5