CVE-2019-19535 : What You Need to Know

A vulnerability was discovered in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver of the Linux kernel prior to version 5.2.9. This vulnerability, tracked under CID-30a8beeb3042, can be exploited by a malicious USB device, leading to an information disclosure issue.

Understanding CVE-2019-19535

This CVE identifies a vulnerability in the Linux kernel that could result in an information disclosure problem when interacting with a malicious USB device.

What is CVE-2019-19535?

CVE-2019-19535 is a vulnerability found in the Linux kernel's drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver before version 5.2.9. It allows a malicious USB device to trigger an information disclosure flaw.

The Impact of CVE-2019-19535

The exploitation of this vulnerability by a malicious USB device can lead to an information disclosure issue, potentially compromising sensitive data on the affected system.

Technical Details of CVE-2019-19535

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability exists in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver of the Linux kernel before version 5.2.9. It is tracked under CID-30a8beeb3042 and can be exploited by a malicious USB device.

Affected Systems and Versions

Affected Component: drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver
Affected Versions: Linux kernel versions prior to 5.2.9

Exploitation Mechanism

The vulnerability can be exploited by a malicious USB device to trigger an information disclosure issue in the affected Linux kernel versions.

Mitigation and Prevention

Protecting systems from CVE-2019-19535 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Linux kernel to version 5.2.9 or newer to mitigate the vulnerability.
Avoid connecting untrusted USB devices to the system to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update and patch the Linux kernel and all system components to address known vulnerabilities.
Implement device control policies to restrict the connection of unauthorized USB devices.

Patching and Updates

Ensure timely installation of security updates and patches provided by the Linux kernel maintainers to address CVE-2019-19535.