CVE-2019-11339 : Exploit Details and Defense Strategies

FFmpeg versions 4.0 prior to 4.0.4 and 4.1 prior to 4.1.2 are vulnerable to remote attacks due to issues in the studio profile decoder in libavcodec/mpeg4videodec.c.

Understanding CVE-2019-11339

This CVE involves vulnerabilities in FFmpeg versions that could lead to denial of service and other potential consequences.

What is CVE-2019-11339?

The decoder for studio profiles in libavcodec/mpeg4videodec.c of FFmpeg versions 4.0 prior to 4.0.4 and 4.1 prior to 4.1.2 might be vulnerable to remote attacks, resulting in denial of service due to out-of-array access or potentially causing other unspecified consequences. This can occur when handling manipulated MPEG-4 video data.

The Impact of CVE-2019-11339

The vulnerabilities in FFmpeg versions 4.0 and 4.1 could allow remote attackers to cause denial of service or potentially have other unspecified impacts by exploiting crafted MPEG-4 video data.

Technical Details of CVE-2019-11339

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The studio profile decoder in libavcodec/mpeg4videodec.c in FFmpeg 4.0 before 4.0.4 and 4.1 before 4.1.2 allows remote attackers to cause a denial of service (out-of-array access) or possibly have unspecified other impact via crafted MPEG-4 video data.

Affected Systems and Versions

FFmpeg versions 4.0 prior to 4.0.4
FFmpeg versions 4.1 prior to 4.1.2

Exploitation Mechanism

The vulnerability can be exploited by manipulating MPEG-4 video data, leading to out-of-array access and potential denial of service.

Mitigation and Prevention

Protecting systems from CVE-2019-11339 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update FFmpeg to versions 4.0.4 or 4.1.2, which contain fixes for the vulnerabilities.
Monitor for any unusual activity related to MPEG-4 video data.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement network security measures to detect and prevent remote attacks.

Patching and Updates

Apply patches provided by FFmpeg to address the vulnerabilities.
Stay informed about security advisories and updates from FFmpeg.