CVE-2017-15831 Explained : Impact and Mitigation

Android for MSM, Firefox OS for MSM, and QRD Android are vulnerable to a potential heap overwrite due to lack of input validation in the wma_ndp_end_indication_event_handler() function.

Understanding CVE-2017-15831

This CVE involves a vulnerability in various Android releases from CAF, potentially leading to a heap overwrite due to an integer overflow.

What is CVE-2017-15831?

The wma_ndp_end_indication_event_handler() function in Android for MSM, Firefox OS for MSM, and QRD Android lacks input validation on the event_info value, allowing an integer overflow that can trigger a heap overwrite.

The Impact of CVE-2017-15831

This vulnerability can be exploited to execute arbitrary code or crash the system, posing a significant security risk to affected devices.

Technical Details of CVE-2017-15831

Android for MSM, Firefox OS for MSM, and QRD Android are affected by this vulnerability, potentially leading to a heap overwrite.

Vulnerability Description

The vulnerability arises from the absence of input validation on the event_info value received from firmware, enabling an integer overflow and subsequent heap overwrite.

Affected Systems and Versions

Android for MSM
Firefox OS for MSM
QRD Android

Exploitation Mechanism

By triggering an integer overflow through the event_info value, attackers can exploit this vulnerability to perform a heap overwrite.

Mitigation and Prevention

Immediate Steps to Take:

Apply patches provided by the respective vendors to address this vulnerability.
Monitor vendor security bulletins for updates and advisories. Long-Term Security Practices:
Implement secure coding practices to validate input data.
Conduct regular security assessments and code reviews to identify and mitigate similar vulnerabilities.
Stay informed about security best practices and updates from relevant sources.

Patching and Updates

Ensure that all affected systems are updated with the latest patches and security fixes to mitigate the risk of exploitation.