SB2019081687 - Out-of-bounds read in ffmpeg (Alpine package)



SB2019081687 - Out-of-bounds read in ffmpeg (Alpine package)

Published: August 16, 2019

Security Bulletin ID SB2019081687
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2018-9841)

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the export function in the libavfilter/vf_signature.c source code file when processing files with long filenames. A remote attacker can trick the victim into opening a specially crafted file with a long filename, trigger out-of-array access and cause the service to crash.

Remediation

Install update from vendor's website.