SB2018042121 - Out-of-bounds read in ffmpeg (Alpine package)
Published: April 21, 2018
Security Bulletin ID
SB2018042121
Severity
Low
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) Out-of-bounds read (CVE-ID: CVE-2018-6912)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the decode_plane function in libavcodec/utvideodec.c due to nsufficient validation of user-supplied input. A remote attacker can submit a specially crafted AVI, trigger out-of-array read and cause the application to crash.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=d8d38dabc6e30c901eb6bd6627d8337849d7c041
- https://git.alpinelinux.org/aports/commit/?id=cf78a820406ae4481e937bc2fba252ff79c89a09
- https://git.alpinelinux.org/aports/commit/?id=859fd99d06049c009c8b745626511cd681061a99
- https://git.alpinelinux.org/aports/commit/?id=67e1fa48160c4e435007390d685bdfacd84ea1f0