CVE-2021-1046 Explained : Impact and Mitigation
Learn about CVE-2021-1046, a critical vulnerability in the Android kernel causing local information disclosure. Find out the impact, technical details, affected systems, and mitigation steps.
This article provides detailed information about CVE-2021-1046, a vulnerability in the Android kernel that could lead to local information disclosure.
Understanding CVE-2021-1046
CVE-2021-1046 is a security vulnerability found in the lwis_dpm_update_clock function of lwis_device_dpm.c in the Android kernel. The issue arises from an incorrect bounds check, potentially allowing for an out-of-bounds read.
What is CVE-2021-1046?
The vulnerability in lwis_dpm_update_clock can be exploited locally to disclose sensitive information without the need for user interaction. This requires system execution privileges to carry out the attack.
The Impact of CVE-2021-1046
The impact of this vulnerability is significant as it could result in the disclosure of local information, posing a threat to the security and privacy of affected systems.
Technical Details of CVE-2021-1046
CVE ID: CVE-2021-1046 Affected Product: Android Affected Version: Android kernel
Vulnerability Description
The vulnerability arises from a flaw in the lwis_dpm_update_clock function, allowing for a potential out-of-bounds read due to an incorrect bounds check.
Affected Systems and Versions
The vulnerability affects systems running the Android kernel, potentially putting data at risk on these devices.
Exploitation Mechanism
To exploit this vulnerability, an attacker would need to have system execution privileges but would not require any user interaction to carry out the attack.
Mitigation and Prevention
It's crucial to take immediate steps to safeguard systems from potential exploitation and implement long-term security practices and regular patching.
Immediate Steps to Take
Update affected systems with the latest security patches and monitor for any unusual activities to detect potential exploitation attempts.
Long-Term Security Practices
Regularly update systems, use security software, and educate users on best security practices to prevent future vulnerabilities.
Patching and Updates
Stay informed about security bulletins and patches released by Android to address CVE-2021-1046 and other related vulnerabilities.