CVE-2019-14896 Explained : Impact and Mitigation

Researchers have identified a security weakness within the Linux kernel, specifically in the Marvell WiFi chip driver of version kernel-2.6.32. This vulnerability stems from a heap-based buffer overflow, potentially leading to a denial of service or unauthorized code execution when triggered by specific functions.

Understanding CVE-2019-14896

This CVE involves a vulnerability in the Marvell WiFi chip driver of the Linux kernel version kernel-2.6.32.

What is CVE-2019-14896?

The vulnerability is a heap-based buffer overflow in the Linux kernel's Marvell WiFi chip driver, potentially allowing attackers to crash the system or execute unauthorized code.

The Impact of CVE-2019-14896

The impact of this vulnerability includes:

High confidentiality, integrity, and availability impact
Low privileges required for exploitation
Local attack vector
No user interaction required
CVSS v3.0 base score of 7.8 (High severity)

Technical Details of CVE-2019-14896

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability is a heap-based buffer overflow in the Marvell WiFi chip driver of the Linux kernel version kernel-2.6.32.

Affected Systems and Versions

Product: Kernel
Vendor: Red Hat
Version: kernel-2.6.32

Exploitation Mechanism

Exploitation may occur when the lbs_ibss_join_existing function is triggered after a Station (STA) connects to an Access Point (AP).

Mitigation and Prevention

Protect your systems from CVE-2019-14896 with these mitigation strategies.

Immediate Steps to Take

Apply relevant security patches promptly
Monitor vendor advisories for updates
Implement network segmentation to limit the impact of potential attacks

Long-Term Security Practices

Regularly update and patch all software and firmware
Conduct security assessments and penetration testing
Educate users on safe computing practices

Patching and Updates

Refer to vendor advisories for patch availability and installation instructions