CVE-2019-19067 : Vulnerability Insights and Analysis

Four memory leaks in the acp_hw_init() function in the Linux kernel version prior to 5.3.8 can lead to denial of service attacks. The vulnerabilities are disputed due to the requirement of the attacker having module loading privileges.

Understanding CVE-2019-19067

This CVE involves memory leaks in the acp_hw_init() function in the Linux kernel version prior to 5.3.8.

What is CVE-2019-19067?

The vulnerabilities in the acp_hw_init() function can be exploited by attackers to cause denial of service attacks by triggering specific failures.

The Impact of CVE-2019-19067

The vulnerabilities can lead to memory consumption, resulting in denial of service attacks within affected systems.

Technical Details of CVE-2019-19067

This section provides technical details of the CVE.

Vulnerability Description

Four memory leaks in the acp_hw_init() function in the Linux kernel version prior to 5.3.8 can be exploited by attackers to cause denial of service by triggering specific failures.

Affected Systems and Versions

Vulnerable systems: Linux kernel versions prior to 5.3.8
Affected function: acp_hw_init()

Exploitation Mechanism

Attackers can exploit the vulnerabilities by triggering failures in mfd_add_hotplug_devices() or pm_genpd_add_device().

Mitigation and Prevention

Protecting systems from CVE-2019-19067 is crucial to prevent denial of service attacks.

Immediate Steps to Take

Update to Linux kernel version 5.3.8 or newer to mitigate the vulnerabilities.
Monitor system logs for any signs of memory leaks or denial of service attacks.

Long-Term Security Practices

Regularly update the Linux kernel and apply security patches promptly.
Implement least privilege access controls to limit the impact of potential attacks.

Patching and Updates

Stay informed about security advisories and patches released by Linux distributions and vendors.