CVE-2021-0464 : Exploit Details and Defense Strategies
CVE-2021-0464 poses a local privilege escalation risk in Android kernel. Learn about the impact, affected systems, exploitation details, and mitigation steps.
Android kernel is affected by a vulnerability in sound_trigger_event_alloc of platform.h, leading to a potential heap buffer overflow. This flaw allows for local privilege escalation without requiring additional execution privileges. User interaction is not necessary for the exploit.
Understanding CVE-2021-0464
This section provides insights into the nature and impact of CVE-2021-0464.
What is CVE-2021-0464?
The vulnerability in sound_trigger_event_alloc of platform.h in the Android kernel allows for a possible out-of-bounds write due to a heap buffer overflow. It can be exploited for local privilege escalation without needing extra execution privileges, and no user interaction is required.
The Impact of CVE-2021-0464
The impact of this vulnerability is the potential escalation of privileges on affected Android devices, posing a security risk to user data and system integrity.
Technical Details of CVE-2021-0464
Delve into the technical aspects and implications of CVE-2021-0464.
Vulnerability Description
The flaw stems from an out-of-bounds write in sound_trigger_event_alloc of platform.h, which can lead to a heap buffer overflow.
Affected Systems and Versions
Products impacted include Android running the Android kernel. The specific affected versions are not disclosed.
Exploitation Mechanism
The vulnerability enables attackers to carry out local privilege escalation without additional execution privileges, making it a critical security concern.
Mitigation and Prevention
Discover the steps to mitigate the risks associated with CVE-2021-0464 and prevent potential exploits.
Immediate Steps to Take
Users should stay vigilant for security updates from the device manufacturer and apply patches promptly to mitigate this vulnerability effectively.
Long-Term Security Practices
Employing robust security practices, such as avoiding suspicious downloads and websites, can enhance the overall security posture and help prevent potential attacks.
Patching and Updates
Regularly update the Android operating system to the latest version available, as vendors often release security patches to address known vulnerabilities, including CVE-2021-0464.