CVE-2017-11719 : Exploit Details and Defense Strategies

CVE-2017-11719 was published on July 28, 2017, and affects the FFmpeg library versions 3.0 through 3.3.2. The vulnerability lies in the dnxhd_decode_header function, allowing remote attackers to disrupt normal functioning or potentially cause other consequences by exploiting a manipulated DNxHD file.

Understanding CVE-2017-11719

This CVE entry highlights a vulnerability in the FFmpeg library that could be exploited remotely to cause denial of service or other impacts.

What is CVE-2017-11719?

The vulnerability in the dnxhd_decode_header function within FFmpeg versions 3.0 through 3.3.2 enables attackers to disrupt normal functioning or potentially cause other consequences by using a manipulated DNxHD file.

The Impact of CVE-2017-11719

The exploitation of this vulnerability can lead to a denial of service (out-of-array access) or other unspecified impacts when a crafted DNxHD file is utilized.

Technical Details of CVE-2017-11719

This section provides more in-depth technical details about the CVE.

Vulnerability Description

The dnxhd_decode_header function in libavcodec/dnxhddec.c in FFmpeg 3.0 through 3.3.2 allows remote attackers to cause a denial of service (out-of-array access) or possibly have unspecified other impact via a crafted DNxHD file.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: FFmpeg library versions 3.0 through 3.3.2

Exploitation Mechanism

Attackers can exploit this vulnerability remotely by utilizing a manipulated DNxHD file to disrupt normal functioning or potentially cause other consequences.

Mitigation and Prevention

Protecting systems from CVE-2017-11719 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update FFmpeg library to a patched version that addresses the vulnerability.
Implement network security measures to prevent remote exploitation.

Long-Term Security Practices

Regularly update software and libraries to the latest secure versions.
Conduct security assessments and audits to identify and mitigate vulnerabilities.

Patching and Updates

Ensure timely patching of the FFmpeg library to versions that have addressed the CVE-2017-11719 vulnerability.