CVE-2019-1000016 Explained : Impact and Mitigation

FFMPEG version 4.1 has a vulnerability (CWE-129) in libavcodec/cbs_av1.c that allows for a denial of service attack. The issue arises from improper validation of array index. This vulnerability can be exploited by providing a specially crafted AV1 file as input. The problem has been resolved in a version subsequent to commit b97a4b658814b2de8b9f2a3bce491c002d34de31.

Understanding CVE-2019-1000016

This CVE entry describes a specific vulnerability in FFMPEG version 4.1.

What is CVE-2019-1000016?

CVE-2019-1000016 is a vulnerability in FFMPEG version 4.1 that allows for a denial of service attack due to improper validation of array index in libavcodec/cbs_av1.c.

The Impact of CVE-2019-1000016

Exploiting this vulnerability can result in a denial of service attack, potentially disrupting the availability of the affected system.

Technical Details of CVE-2019-1000016

FFMPEG version 4.1 vulnerability details.

Vulnerability Description

The vulnerability in FFMPEG version 4.1 is categorized as CWE-129, involving improper validation of array index in libavcodec/cbs_av1.c, leading to a denial of service risk.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Version: n/a

Exploitation Mechanism

To exploit the vulnerability, a specially crafted AV1 file must be provided as input to trigger the denial of service.

Mitigation and Prevention

Protective measures against CVE-2019-1000016.

Immediate Steps to Take

Update FFMPEG to a version beyond commit b97a4b658814b2de8b9f2a3bce491c002d34de31.
Avoid opening AV1 files from untrusted sources.

Long-Term Security Practices

Regularly update software and apply security patches.
Implement network security measures to prevent malicious file execution.
Conduct security audits and vulnerability assessments.

Patching and Updates

Ensure timely installation of software updates and patches to mitigate known vulnerabilities.