CVE-2018-5849 : Exploit Details and Defense Strategies
Learn about CVE-2018-5849, a Use After Free vulnerability in Qualcomm Android devices, potentially allowing arbitrary code execution. Find mitigation steps and updates here.
Android for MSM, Firefox OS for MSM, and QRD Android devices by Qualcomm are affected by a Use After Free vulnerability due to a race condition in the QTEECOM driver.
Understanding CVE-2018-5849
This CVE involves a Use After Free vulnerability in Qualcomm devices running specific Android releases from CAF using the Linux kernel.
What is CVE-2018-5849?
CVE-2018-5849 is a Use After Free vulnerability that occurs when multiple HLOS clients load the same Trusted Application (TA) in Android releases from CAF, leading to a race condition in the QTEECOM driver.
The Impact of CVE-2018-5849
The vulnerability can result in a Use After Free condition, potentially allowing attackers to execute arbitrary code or cause a denial of service on the affected devices.
Technical Details of CVE-2018-5849
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The Use After Free vulnerability arises from a race condition in the QTEECOM driver when multiple HLOS clients load the same TA in Android releases from CAF.
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 occurs due to a race condition in the QTEECOM driver when more than one HLOS client loads the same TA, leading to the Use After Free condition.
Mitigation and Prevention
Protecting systems from CVE-2018-5849 is crucial to maintaining security.
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 software and firmware on affected devices.
- Implement security best practices to prevent and detect potential exploitation of vulnerabilities.
Patching and Updates
- Ensure all devices running affected Android releases from CAF using the Linux kernel are updated with the latest patches from Qualcomm.