CVE-2019-15220 : What You Need to Know

A flaw in the Linux kernel prior to version 5.2.1 leads to a use-after-free vulnerability due to a malicious USB device in the p54usb.c driver.

Understanding CVE-2019-15220

A vulnerability in the Linux kernel that can be exploited by a malevolent USB device.

What is CVE-2019-15220?

This CVE identifies a use-after-free flaw in the Linux kernel caused by a malicious USB device in the p54usb.c driver.

The Impact of CVE-2019-15220

The vulnerability allows an attacker to execute arbitrary code or cause a denial of service (DoS) on the affected system.

Technical Details of CVE-2019-15220

A detailed look at the technical aspects of this CVE.

Vulnerability Description

The issue arises in the Linux kernel before version 5.2.1, specifically in the p54usb.c driver, due to a use-after-free vulnerability triggered by a malevolent USB device.

Affected Systems and Versions

Linux kernel versions before 5.2.1

Exploitation Mechanism

The vulnerability can be exploited by an attacker with a malicious USB device to trigger the use-after-free condition, potentially leading to arbitrary code execution or DoS.

Mitigation and Prevention

Measures to address and prevent the CVE-2019-15220 vulnerability.

Immediate Steps to Take

Update the Linux kernel to version 5.2.1 or later to mitigate the vulnerability.
Monitor and restrict USB device connections to trusted sources.

Long-Term Security Practices

Regularly update the Linux kernel and system components to patch known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Apply security patches provided by Linux distributions and vendors to address the CVE-2019-15220 vulnerability.