SB2017083130 - Input validation error in ffmpeg.sourceforge.net FFmpeg
Published: August 31, 2017 Updated: August 4, 2020
Security Bulletin ID
SB2017083130
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2017-14054)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
Remediation
Install update from vendor's website.