CVE-2021-0993 : Security Advisory and Response
Discover the details of CVE-2021-0993, a vulnerability in Android 12 that could lead to denial of service attacks. Learn about the impact, affected systems, and mitigation steps.
This article provides an in-depth analysis of CVE-2021-0993, a vulnerability in Android 12 that could lead to a denial of service attack due to resource exhaustion. The exploit requires user interaction for activation.
Understanding CVE-2021-0993
This section delves into the details of the CVE-2021-0993 vulnerability in Android 12.
What is CVE-2021-0993?
The vulnerability exists in getOffsetBeforeAfter of TextLine.java in Android 12, allowing for a potential denial of service attack through resource exhaustion. A threat actor could exploit this remotely without the need for additional execution privileges.
The Impact of CVE-2021-0993
If exploited, CVE-2021-0993 could result in a remote denial of service attack on systems running Android 12, impacting the availability of services and requiring user interaction for successful exploitation.
Technical Details of CVE-2021-0993
This section outlines the technical aspects of the CVE-2021-0993 vulnerability.
Vulnerability Description
The vulnerability in TextLine.java's getOffsetBeforeAfter function can exhaust system resources, leading to denial of service attacks.
Affected Systems and Versions
Android 12 is confirmed to be affected by CVE-2021-0993, posing a risk to devices running this specific version.
Exploitation Mechanism
The vulnerability can be exploited by triggering the getOffsetBeforeAfter function in TextLine.java, causing resource exhaustion and initiating a denial of service attack.
Mitigation and Prevention
In light of CVE-2021-0993, it is crucial to take immediate action to secure affected systems.
Immediate Steps to Take
Users are advised to apply relevant patches and updates provided by Android to mitigate the risk associated with CVE-2021-0993.
Long-Term Security Practices
Implementing robust security practices, such as regular system updates and monitoring, can enhance the overall security posture and reduce the likelihood of successful exploits.
Patching and Updates
Stay informed about security bulletins and updates from Android to ensure timely patching of vulnerabilities like CVE-2021-0993.