CVE-2018-5846 Explained : Impact and Mitigation

Android for MSM, Firefox OS for MSM, and QRD Android devices by Qualcomm may be vulnerable to a Use After Free condition in the IPA driver when certain IPA IOCTLs are invoked.

Understanding CVE-2018-5846

This CVE involves a potential security issue in Qualcomm devices running specific Android releases from CAF using the Linux kernel.

What is CVE-2018-5846?

The IPA driver in Android versions from CAF may experience a Use After Free condition when certain IPA IOCTLs are called, leading to a security vulnerability.

The Impact of CVE-2018-5846

This vulnerability could allow attackers to exploit the system, potentially leading to unauthorized access or other malicious activities.

Technical Details of CVE-2018-5846

Qualcomm devices running affected Android releases from CAF using the Linux kernel are at risk due to a Use After Free condition in the IPA driver.

Vulnerability Description

The IPA driver in Android for MSM, Firefox OS for MSM, and QRD Android devices may encounter a Use After Free condition when specific IPA IOCTLs are triggered.

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 arises when invoking the IPA IOCTLs IPA_IOC_NOTIFY_WAN_UPSTREAM_ROUTE_ADD/IPA_IOC_NOTIFY_WAN_UPSTREAM_ROUTE_DEL/IPA_IOC_NOTIFY_WAN_EMBMS_CONNECTED.

Mitigation and Prevention

To address CVE-2018-5846, follow these steps:

Immediate Steps to Take

Apply security patches provided by Qualcomm promptly.
Monitor official sources for updates and advisories regarding this vulnerability.

Long-Term Security Practices

Regularly update the device's operating system and firmware.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Stay informed about security bulletins and patches released by Qualcomm.