CVE-2019-19054 : Exploit Details and Defense Strategies

A memory leak vulnerability in the Linux kernel through version 5.3.11 can lead to a denial of service attack. Attackers can exploit this issue by triggering failures in the kfifo_alloc() function.

Understanding CVE-2019-19054

This CVE identifies a memory leak problem in the cx23888_ir_probe() function within the Linux kernel.

What is CVE-2019-19054?

The vulnerability in the cx23888_ir_probe() function in the Linux kernel allows attackers to cause a denial of service by inducing kfifo_alloc() failures.

The Impact of CVE-2019-19054

The vulnerability can be exploited by attackers to trigger memory consumption, leading to a denial of service condition.

Technical Details of CVE-2019-19054

The technical aspects of the vulnerability are as follows:

Vulnerability Description

The cx23888_ir_probe() function in the Linux kernel through version 5.3.11 has a memory leak issue.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions affected: All versions up to 5.3.11

Exploitation Mechanism

Attackers can exploit this vulnerability by triggering failures in the kfifo_alloc() function.

Mitigation and Prevention

To address CVE-2019-19054, consider the following steps:

Immediate Steps to Take

Apply relevant patches provided by the Linux kernel maintainers.
Monitor for any unusual memory consumption patterns on affected systems.

Long-Term Security Practices

Regularly update the Linux kernel to the latest stable version.
Implement proper memory management practices to mitigate memory leak vulnerabilities.

Patching and Updates

Stay informed about security advisories and updates from the Linux kernel community.
Apply patches promptly to ensure system security.