CVE-2019-15504 : Exploit Details and Defense Strategies

The Double Free vulnerability in the Linux kernel can be exploited through malicious USB device traffic, affecting versions up to 5.2.9.

Understanding CVE-2019-15504

This CVE involves a Double Free vulnerability in the Linux kernel, specifically in the drivers/net/wireless/rsi/rsi_91x_usb.c file.

What is CVE-2019-15504?

The CVE-2019-15504 vulnerability occurs in the Linux kernel, allowing remote exploitation through malicious USB device traffic.

The Impact of CVE-2019-15504

Attackers can exploit this vulnerability remotely using usbip or usbredir.

Technical Details of CVE-2019-15504

This section provides detailed technical information about the CVE.

Vulnerability Description

The Double Free vulnerability in drivers/net/wireless/rsi/rsi_91x_usb.c in the Linux kernel through 5.2.9 allows a Double Free via crafted USB device traffic.

Affected Systems and Versions

Affected versions: Up to Linux kernel version 5.2.9

Exploitation Mechanism

Exploitation can be done remotely through malicious USB device traffic using usbip or usbredir.

Mitigation and Prevention

Protecting systems from CVE-2019-15504 is crucial to ensure security.

Immediate Steps to Take

Apply patches provided by the Linux kernel maintainers promptly.
Monitor vendor advisories for updates and follow best security practices.

Long-Term Security Practices

Regularly update the Linux kernel to the latest stable version.
Implement network segmentation and access controls to prevent unauthorized access.
Conduct regular security assessments and penetration testing.

Patching and Updates

Stay informed about security updates and patches released by the Linux kernel maintainers and apply them as soon as possible.