CVE-2021-0308 : Security Advisory and Response
Learn about CVE-2021-0308 affecting Android versions 8.0-11, allowing out-of-bounds write leading to local privilege escalation. Discover mitigation steps and the impact of this security threat.
Android devices with versions 8.0, 8.1, 9, 10, and 11 are affected by a vulnerability in ReadLogicalParts of basicmbr.cc allowing out-of-bounds write, leading to privilege escalation without user interaction. Google has provided security updates to mitigate the issue.
Understanding CVE-2021-0308
This CVE affects various Android versions due to a missing bounds check that could be exploited for local privilege escalation.
What is CVE-2021-0308?
CVE-2021-0308 is a vulnerability in Android's basicmbr.cc that allows an attacker to perform an out-of-bounds write, potentially leading to privilege escalation without the need for additional execution privileges.
The Impact of CVE-2021-0308
The impact of this vulnerability is the local escalation of privilege on affected Android devices, posing a significant security risk to users.
Technical Details of CVE-2021-0308
This section covers the specific technical details of the CVE.
Vulnerability Description
The vulnerability resides in ReadLogicalParts of basicmbr.cc, enabling an out-of-bounds write that could be leveraged for privilege escalation.
Affected Systems and Versions
Android versions 8.0, 8.1, 9, 10, and 11 are affected by this vulnerability, potentially exposing a wide range of devices to exploitation.
Exploitation Mechanism
The exploitation of this vulnerability does not require user interaction, making it a dangerous threat to affected Android devices.
Mitigation and Prevention
To address CVE-2021-0308 and enhance system security, users and administrators should take immediate action.
Immediate Steps to Take
Users should update their Android devices to the latest security patches provided by Google to mitigate the vulnerability.
Long-Term Security Practices
Implementing robust security practices, such as regular software updates and security monitoring, can help prevent future vulnerabilities.
Patching and Updates
Regularly apply security updates and patches released by Google to ensure the protection of Android devices against the CVE-2021-0308 vulnerability.