CVE-2017-15861 Explained : Impact and Mitigation

Android for MSM, Firefox OS for MSM, QRD Android by Qualcomm, Inc. are affected by a vulnerability in the function wma_roam_synch_event_handler.

Understanding CVE-2017-15861

This CVE involves improper input validation in Qualcomm products utilizing Android releases from CAF with the Linux kernel.

What is CVE-2017-15861?

The vulnerability in the function wma_roam_synch_event_handler allows unauthorized access to an array due to lack of validation of the received vdev_id from firmware.

The Impact of CVE-2017-15861

This vulnerability could be exploited by attackers to execute arbitrary code or cause a denial of service on affected systems.

Technical Details of CVE-2017-15861

The following technical details provide insight into the vulnerability.

Vulnerability Description

The function wma_roam_synch_event_handler in Qualcomm products incorporating Android releases from CAF, utilizing the Linux kernel, allows unauthorized access to an array due to lack of validation of the received vdev_id from firmware.

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 is exploited by manipulating the vdev_id received from firmware to access an array without proper validation.

Mitigation and Prevention

Protecting systems from CVE-2017-15861 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Qualcomm or the respective vendor.
Monitor for any unusual activities on the network.

Long-Term Security Practices

Implement strict input validation mechanisms in software development.
Conduct regular security audits and assessments to identify and address vulnerabilities.

Patching and Updates

Regularly update software and firmware to the latest versions to mitigate known vulnerabilities.