CVE-2020-3642 : Vulnerability Insights and Analysis
Learn about CVE-2020-3642, a critical use after free issue in camera applications on Qualcomm Snapdragon Consumer IOT and Snapdragon Mobile devices. Find mitigation steps and affected versions here.
A use after free issue in camera applications affecting Snapdragon Consumer IOT and Snapdragon Mobile devices.
Understanding CVE-2020-3642
What is CVE-2020-3642?
This CVE involves a use after free issue in camera applications due to a pointer not being set to NULL after free/destroy of the object in various Qualcomm Snapdragon devices.
The Impact of CVE-2020-3642
This vulnerability could be exploited by an attacker to execute arbitrary code or cause a denial of service on the affected devices.
Technical Details of CVE-2020-3642
Vulnerability Description
The vulnerability arises in camera applications when used randomly over multiple operations, leading to a use after free issue.
Affected Systems and Versions
- Products: Snapdragon Consumer IOT, Snapdragon Mobile
- Versions: Kamorta, QCS605, Rennell, Saipan, SDM670, SDM710, SDM845, SM6150, SM7150, SM8150, SM8250, SXR1130, SXR2130
Exploitation Mechanism
The issue occurs due to the pointer not being properly set to NULL after freeing or destroying the object.
Mitigation and Prevention
Immediate Steps to Take
- Apply patches provided by Qualcomm promptly.
- Avoid using untrusted camera applications on the affected devices.
Long-Term Security Practices
- Regularly update the device's firmware and software.
- Implement proper security measures to prevent unauthorized access.
Patching and Updates
Ensure that the devices are updated with the latest security patches from Qualcomm.