CVE-2018-11224 : Exploit Details and Defense Strategies

Libav version 12.3 has a vulnerability that allows remote attackers to cause a denial of service by exploiting an unauthorized read access violation in the in_table_init16 function.

Understanding CVE-2018-11224

This CVE identifies a vulnerability in Libav version 12.3 that can lead to a denial of service attack.

What is CVE-2018-11224?

CVE-2018-11224 is a vulnerability in the file aacsbr.c within the libavcodec directory, allowing remote attackers to trigger an application crash, resulting in a denial of service.

The Impact of CVE-2018-11224

The vulnerability can be exploited by remote attackers to cause an application crash, leading to a denial of service. This issue has been demonstrated with the avconv tool.

Technical Details of CVE-2018-11224

This section provides technical details about the vulnerability.

Vulnerability Description

An unauthorized read access violation occurs in the in_table_init16 function in the file aacsbr.c within the libavcodec directory.

Affected Systems and Versions

Affected Version: Libav version 12.3

Exploitation Mechanism

Remote attackers can exploit this vulnerability to cause an application crash, resulting in a denial of service.

Mitigation and Prevention

Protect your systems from CVE-2018-11224 with the following steps:

Immediate Steps to Take

Update Libav to a patched version.
Monitor for any unusual activity on the network.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement network security measures to prevent unauthorized access.
Conduct regular security audits and penetration testing.

Patching and Updates

Apply patches provided by Libav to fix the vulnerability.