SB2019031208 - Multiple vulnerabilities in FFmpeg

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Main Vulnerability Database SB2019031208

SB2019031208 - Multiple vulnerabilities in FFmpeg

Published: March 12, 2019 Updated: April 19, 2019

Security Bulletin ID SB2019031208
Severity
Low
Patch available
YES
Number of vulnerabilities 2
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 2 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2019-9718)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the subtitle decoder in ff_htmlmarkup_to_ass() function in libavcodec/htmlsubtitles.c when processing video files in Matroska format. A remote attacker can create a specially crafted video file, pass it to the affected application and consume all available CPU resources.


2) Input validation error (CVE-ID: CVE-2019-9721)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the subtitle decoder in handle_open_brace() function in libavcodec/htmlsubtitles.c when processing video files in Matroska format. A remote attacker can create a specially crafted video file, pass it to the affected application and consume all available CPU resources.


Remediation

Install update from vendor's website.

References