CVE-2018-11868 : Security Advisory and Response

Android for MSM, Firefox OS for MSM, QRD Android by Qualcomm, Inc. are affected by a buffer overflow vulnerability due to lack of length validation in the Linux kernel.

Understanding CVE-2018-11868

This CVE involves a buffer overflow issue in the nan response event handler in various Android releases from CAF when using the Linux kernel.

What is CVE-2018-11868?

A buffer overflow vulnerability in Android for MSM, Firefox OS for MSM, QRD Android can be exploited due to the absence of proper length validation checks for values received from firmware.

The Impact of CVE-2018-11868

The vulnerability can allow an attacker to execute arbitrary code or crash the system, potentially leading to a denial of service (DoS) condition.

Technical Details of CVE-2018-11868

The technical aspects of this CVE include:

Vulnerability Description

Buffer overflow in the nan response event handler due to lack of length validation

Affected Systems and Versions

Products: Android for MSM, Firefox OS for MSM, QRD Android
Vendor: Qualcomm, Inc.
Versions: All Android releases from CAF using the Linux kernel

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted values to trigger the buffer overflow.

Mitigation and Prevention

To address CVE-2018-11868, consider the following mitigation strategies:

Immediate Steps to Take

Apply patches provided by Qualcomm or the respective vendors
Monitor network traffic for any suspicious activities
Implement strict input validation checks in the affected systems

Long-Term Security Practices

Regularly update firmware and software to the latest versions
Conduct security assessments and penetration testing to identify vulnerabilities

Patching and Updates

Stay informed about security bulletins and updates from Qualcomm and CAF
Follow best practices for secure coding and firmware development