CVE-2018-19130 : What You Need to Know

A flaw in Libav version 12.3 allows attackers to trigger a denial-of-service attack through unauthorized memory access. This vulnerability is disputed and may be related to CVE-2017-17127.

Understanding CVE-2018-19130

This CVE entry describes a security flaw in Libav version 12.3 that could be exploited by attackers to cause a denial-of-service attack.

What is CVE-2018-19130?

The vulnerability in Libav version 12.3 allows unauthorized memory access in the function vc1_decode_frame in the file libavcodec/vc1dec.c, enabling attackers to initiate a denial-of-service attack using a manipulated aac file.

The Impact of CVE-2018-19130

The exploitation of this vulnerability can lead to a denial-of-service attack, potentially disrupting the normal operation of the affected system.

Technical Details of CVE-2018-19130

This section provides more technical insights into the CVE-2018-19130 vulnerability.

Vulnerability Description

The flaw in Libav version 12.3 resides in the function vc1_decode_frame in the file libavcodec/vc1dec.c, resulting in unauthorized memory access.

Affected Systems and Versions

Affected Version: 12.3
Product: Libav
Vendor: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by using a manipulated aac file to trigger unauthorized memory access, leading to a denial-of-service attack.

Mitigation and Prevention

Protecting systems from CVE-2018-19130 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security updates promptly to mitigate the vulnerability.
Monitor for any unusual system behavior that could indicate an ongoing attack.

Long-Term Security Practices

Regularly update software and libraries to patch known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.
Conduct regular security assessments and penetration testing to identify and address security weaknesses.
Educate users and administrators about safe computing practices to prevent exploitation of vulnerabilities.
Consider using intrusion detection and prevention systems to enhance security posture.

Patching and Updates

Ensure that the latest security updates and patches are applied to the affected systems to address the vulnerability and enhance overall system security.