CVE-2019-15215 : What You Need to Know

A vulnerability was identified in the Linux kernel prior to version 5.2.6. The drivers/media/usb/cpia2/cpia2_usb.c driver is susceptible to a use-after-free exploit triggered by a malicious USB device.

Understanding CVE-2019-15215

This CVE pertains to a specific vulnerability found in the Linux kernel.

What is CVE-2019-15215?

CVE-2019-15215 is a use-after-free vulnerability in the Linux kernel's drivers/media/usb/cpia2/cpia2_usb.c driver, which can be exploited by a malicious USB device.

The Impact of CVE-2019-15215

This vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by exploiting the use-after-free issue in the affected driver.

Technical Details of CVE-2019-15215

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in the Linux kernel before version 5.2.6 is due to a use-after-free condition triggered by a malicious USB device in the cpia2_usb.c driver.

Affected Systems and Versions

Systems running Linux kernel versions prior to 5.2.6
Specifically, the drivers/media/usb/cpia2/cpia2_usb.c driver

Exploitation Mechanism

The vulnerability can be exploited by a malicious USB device to trigger the use-after-free condition in the cpia2_usb.c driver, potentially leading to arbitrary code execution or denial of service.

Mitigation and Prevention

Protecting systems from CVE-2019-15215 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Linux kernel to version 5.2.6 or newer to mitigate the vulnerability.
Monitor and restrict USB device connections to trusted sources.

Long-Term Security Practices

Regularly update and patch the Linux kernel and system components.
Implement strict USB device usage policies and controls to prevent unauthorized devices.

Patching and Updates

Apply security patches provided by Linux distributions promptly to address known vulnerabilities like CVE-2019-15215.