CVE-2022-39120 : What You Need to Know
Learn about CVE-2022-39120, a vulnerability in Unisoc sensor driver allowing for out-of-bounds writes, leading to local denial of service in the kernel. Find out impacted products and mitigation steps.
A detailed overview of CVE-2022-39120 highlighting the vulnerability, impact, technical details, and mitigation steps.
Understanding CVE-2022-39120
This section delves into the specifics of the CVE-2022-39120 vulnerability.
What is CVE-2022-39120?
The CVE-2022-39120 vulnerability resides in the sensor driver, where an out-of-bounds write can occur due to a missing bounds check. This flaw may result in a local denial of service within the kernel.
The Impact of CVE-2022-39120
The impact of CVE-2022-39120 revolves around the potential for local denial of service within the kernel, posing a security risk to affected systems.
Technical Details of CVE-2022-39120
This section outlines the technical aspects of CVE-2022-39120.
Vulnerability Description
The vulnerability involves an out-of-bounds write in the sensor driver, triggered by the absence of a bounds check, which can be exploited for local denial of service attacks.
Affected Systems and Versions
The vulnerability affects a range of Unisoc (Shanghai) Technologies Co., Ltd. products including SC9863A, SC9832E, SC7731E, T610, T310, T606, T760, T610, T618, T606, T612, T616, T760, T770, T820, and S8000 running Android10, Android11, or Android12.
Exploitation Mechanism
The exploit involves triggering an out-of-bounds write operation in the sensor driver by circumventing the missing bounds check, leading to a local denial of service scenario.
Mitigation and Prevention
Here are the steps to mitigate and prevent CVE-2022-39120.
Immediate Steps to Take
- Apply security patches provided by Unisoc for the affected products and versions.
- Monitor for any unusual kernel behavior that might indicate a denial of service attempt.
Long-Term Security Practices
- Regularly update the firmware and software of the affected devices to patch known vulnerabilities.
- Implement device hardening measures to reduce the attack surface and enhance overall security.
Patching and Updates
Stay informed about security bulletins and updates from Unisoc to promptly address vulnerabilities and ensure the ongoing protection of your devices.