CVE-2018-11293 : Security Advisory and Response

Android for MSM, Firefox OS for MSM, QRD Android by Qualcomm, Inc. is affected by a buffer over-read vulnerability due to improper verification of firmware values.

Understanding CVE-2018-11293

What is CVE-2018-11293?

A buffer over-read vulnerability exists in all Android releases from CAF using the Linux kernel, impacting Qualcomm's Android for MSM, Firefox OS for MSM, and QRD Android.

The Impact of CVE-2018-11293

The vulnerability can lead to a buffer over-read if certain firmware values are not adequately verified, potentially resulting in security breaches and unauthorized access.

Technical Details of CVE-2018-11293

Vulnerability Description

The issue arises in the wma_ndp_confirm_event_handler and wma_ndp_indication_event_handler functions, where the ndp_cfg len and num_ndp_app_info values from the firmware are not properly checked.

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

The vulnerability can be exploited by manipulating the firmware values related to ndp_cfg len and num_ndp_app_info, allowing attackers to trigger a buffer over-read.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Qualcomm to address the vulnerability.
Regularly monitor security bulletins and updates from the vendor.

Long-Term Security Practices

Implement secure coding practices to prevent buffer over-read vulnerabilities.
Conduct regular security assessments and audits to identify and mitigate similar issues.

Patching and Updates

Keep systems up to date with the latest security patches and firmware releases from Qualcomm.