CVE-2019-19530 : What You Need to Know

A vulnerability was discovered in the Linux kernel versions prior to 5.2.10. This vulnerability, identified as CID-c52873e5a1ef, is located specifically in the drivers/usb/class/cdc-acm.c driver and it stems from a use-after-free bug. Exploitation of this vulnerability can be initiated by utilizing a malicious USB device.

Understanding CVE-2019-19530

What is CVE-2019-19530?

In the Linux kernel before 5.2.10, a use-after-free bug exists in the drivers/usb/class/cdc-acm.c driver, allowing exploitation via a malicious USB device.

The Impact of CVE-2019-19530

This vulnerability can be exploited by an attacker using a specially crafted USB device, potentially leading to arbitrary code execution or denial of service.

Technical Details of CVE-2019-19530

Vulnerability Description

The vulnerability in the Linux kernel before 5.2.10 is a use-after-free bug in the drivers/usb/class/cdc-acm.c driver.

Affected Systems and Versions

Affected systems: Linux kernel versions prior to 5.2.10
Affected component: drivers/usb/class/cdc-acm.c driver

Exploitation Mechanism

Exploitation of this vulnerability can be triggered by an attacker utilizing a malicious USB device.

Mitigation and Prevention

Immediate Steps to Take

Update to Linux kernel version 5.2.10 or later to mitigate the vulnerability.
Avoid connecting untrusted USB devices to your system.

Long-Term Security Practices

Regularly update your system and apply security patches promptly.
Implement device control policies to restrict the use of USB devices.

Patching and Updates

Ensure timely installation of security updates and patches provided by the Linux kernel maintainers.