CVE-2019-15216 Explained : Impact and Mitigation

A problem has been identified in the Linux kernel version prior to 5.0.14. In the drivers/usb/misc/yurex.c driver, a null pointer dereference occurs as a result of a malevolent USB device.

Understanding CVE-2019-15216

An issue was discovered in the Linux kernel before 5.0.14. There is a NULL pointer dereference caused by a malicious USB device in the drivers/usb/misc/yurex.c driver.

What is CVE-2019-15216?

This CVE refers to a vulnerability in the Linux kernel that allows a null pointer dereference due to a malicious USB device in the yurex.c driver.

The Impact of CVE-2019-15216

The vulnerability can be exploited by an attacker with physical access to the system via a specially crafted USB device, potentially leading to a denial of service (DoS) or arbitrary code execution.

Technical Details of CVE-2019-15216

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in the Linux kernel before version 5.0.14 is a null pointer dereference triggered by a malicious USB device in the yurex.c driver.

Affected Systems and Versions

Affected System: Linux kernel versions prior to 5.0.14
Affected Driver: drivers/usb/misc/yurex.c
Affected Component: USB subsystem

Exploitation Mechanism

The vulnerability can be exploited by an attacker inserting a specially crafted USB device, leading to the null pointer dereference in the yurex.c driver.

Mitigation and Prevention

Protecting systems from CVE-2019-15216 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update to Linux kernel version 5.0.14 or later to mitigate the vulnerability.
Avoid connecting untrusted USB devices to the system.

Long-Term Security Practices

Regularly update the Linux kernel and apply security patches promptly.
Implement device control policies to restrict USB device usage.

Patching and Updates

Refer to official sources for patching information and follow recommended update procedures to secure the system.