CVE-2019-19075 : What You Need to Know

A memory leak vulnerability in the Linux kernel version prior to 5.3.8 can be exploited by attackers to launch denial of service attacks.

Understanding CVE-2019-19075

This CVE involves a memory leak issue in the ca8210_probe() function within the Linux kernel.

What is CVE-2019-19075?

The vulnerability in the ca8210_probe() function in the Linux kernel before version 5.3.8 allows attackers to trigger failures in ca8210_get_platform_data(), leading to denial of service attacks that consume excessive memory. It is also known as CID-6402939ec86e.

The Impact of CVE-2019-19075

Attackers can exploit this vulnerability to cause denial of service by consuming excessive memory.

Technical Details of CVE-2019-19075

This section provides more technical insights into the vulnerability.

Vulnerability Description

The memory leak in the ca8210_probe() function in drivers/net/ieee802154/ca8210.c in the Linux kernel before 5.3.8 allows attackers to cause denial of service by triggering failures in ca8210_get_platform_data().

Affected Systems and Versions

Affected System: Linux kernel versions prior to 5.3.8
Affected Component: ca8210_probe() function

Exploitation Mechanism

Attackers can exploit this vulnerability by initiating ca8210_get_platform_data() failures, leading to memory consumption and denial of service.

Mitigation and Prevention

Protecting systems from CVE-2019-19075 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches provided by the Linux kernel to fix the memory leak vulnerability.
Monitor system resources for any unusual memory consumption.

Long-Term Security Practices

Regularly update the Linux kernel to the latest version to ensure all security patches are applied.
Implement network segmentation and access controls to minimize the impact of potential denial of service attacks.

Patching and Updates

Update the Linux kernel to version 5.3.8 or newer to mitigate the memory leak vulnerability.