CVE-2017-14054 Information

Description

In libavformat/rmdec.c in FFmpeg 3.3.3 a DoS in ivr_read_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted IVR file which claims a large \len\ field in the header but does not contain sufficient backing data is provided the first type==4 loop would consume huge CPU 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/100627 https://github.com/FFmpeg/FFmpeg/commit/124eb202e70678539544f6268efc98131f19fa49

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