CVE-2019-20096 Explained : Impact and Mitigation

A memory leak vulnerability was found in the Linux kernel before version 5.1, specifically in the __feat_register_sp() function in the feat.c file under the net/dccp directory. Exploiting this flaw could result in a denial of service condition.

Understanding CVE-2019-20096

This CVE pertains to a memory leak issue in the Linux kernel that could lead to a denial of service.

What is CVE-2019-20096?

This CVE identifies a memory leak vulnerability in the Linux kernel, affecting versions prior to 5.1. The vulnerability is located in the __feat_register_sp() function within the net/dccp directory.

The Impact of CVE-2019-20096

Exploiting this vulnerability could result in a denial of service condition, potentially disrupting system availability and performance.

Technical Details of CVE-2019-20096

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability involves a memory leak in the __feat_register_sp() function in the Linux kernel's net/dccp/feat.c file.

Affected Systems and Versions

Affected systems: Linux systems running kernel versions before 5.1
Affected component: __feat_register_sp() function in the feat.c file under the net/dccp directory

Exploitation Mechanism

Exploiting this vulnerability involves triggering the memory leak in the specified function, potentially leading to a denial of service.

Mitigation and Prevention

To address CVE-2019-20096, follow these mitigation strategies:

Immediate Steps to Take

Apply relevant security patches provided by the Linux kernel maintainers
Monitor official sources for updates and advisories related to this vulnerability

Long-Term Security Practices

Regularly update the Linux kernel to patched versions
Implement network security measures to detect and prevent potential exploitation of vulnerabilities

Patching and Updates

Keep the Linux kernel up to date with the latest security patches
Stay informed about security advisories and updates from trusted sources