CVE-2018-5823 : Security Advisory and Response

Android for MSM, Firefox OS for MSM, and QRD Android by Qualcomm, Inc. are affected by a buffer overflow vulnerability due to improper buffer length validation.

Understanding CVE-2018-5823

This CVE involves a buffer overflow risk in Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android, potentially leading to security breaches.

What is CVE-2018-5823?

The vulnerability arises from inadequate validation of buffer length in the extscan hotlist event in Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android, impacting all Android releases from CAF using the Linux kernel.

The Impact of CVE-2018-5823

Exploitation of this vulnerability could result in a buffer overflow, potentially allowing attackers to execute arbitrary code or crash the system, leading to a denial of service.

Technical Details of CVE-2018-5823

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability stems from improper buffer length validation in the extscan hotlist event, which may lead to a buffer overflow.

Affected Systems and Versions

Product: 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 crafting malicious input to trigger a buffer overflow, potentially leading to system compromise.

Mitigation and Prevention

Protecting systems from CVE-2018-5823 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Qualcomm or the respective vendors promptly.
Monitor vendor security bulletins for updates and advisories.

Long-Term Security Practices

Implement network segmentation to contain potential attacks.
Regularly update and patch systems to mitigate known vulnerabilities.

Patching and Updates

Ensure all systems are updated with the latest security patches to address the CVE-2018-5823 vulnerability.