CVE-2018-14745 : What You Need to Know

A buffer overflow vulnerability in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 allows an attacker to modify kernel memory by exploiting inadequate validation of the ring buffer read pointer.

Understanding CVE-2018-14745

This CVE entry describes a critical vulnerability in the Wi-Fi driver of the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7.

What is CVE-2018-14745?

The vulnerability, known as SVE-2018-12029, enables an attacker who has code execution on the Wi-Fi chip to trigger a buffer overflow in the driver, leading to unauthorized modification of kernel memory.

The Impact of CVE-2018-14745

The exploitation of this vulnerability can result in a security breach where an attacker gains unauthorized access to and control over the affected device, compromising its integrity and confidentiality.

Technical Details of CVE-2018-14745

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The buffer overflow occurs in prot_get_ring_space in the bcmdhd4358 Wi-Fi driver, allowing the attacker to overwrite kernel memory due to the improper validation of the ring buffer read pointer.

Affected Systems and Versions

Samsung Galaxy S6 SM-G920F G920FXXU5EQH7

Exploitation Mechanism

Attacker needs code execution on the Wi-Fi chip
Inadequate validation of the ring buffer read pointer

Mitigation and Prevention

Protecting systems from CVE-2018-14745 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security updates from Samsung promptly
Monitor for any suspicious activities on the device

Long-Term Security Practices

Regularly update device firmware and drivers
Implement network segmentation to limit the impact of potential attacks

Patching and Updates

Stay informed about security advisories from Samsung
Apply patches and updates as soon as they are available