CVE-2021-0878 : Security Advisory and Response
Learn about CVE-2021-0878, a vulnerability in Android's PowerVR kernel driver that enables local privilege escalation without user interaction. Understand the impact, technical details, and mitigation steps.
A detailed overview of CVE-2021-0878 highlighting the vulnerability, impact, technical details, and mitigation steps.
Understanding CVE-2021-0878
In PVRSRVBridgeServerSyncGetStatus of the PowerVR kernel driver, a missing size check leads to a possible integer overflow, enabling out-of-bounds heap access and local privilege escalation without additional execution privileges.
What is CVE-2021-0878?
The vulnerability in the Android PowerVR kernel driver allows an attacker to gain local escalation of privilege without user interaction, posing a security risk to affected systems.
The Impact of CVE-2021-0878
The CVE-2021-0878 vulnerability could result in out-of-bounds heap access, enabling threat actors to exploit the issue for local privilege escalation on Android systems running affected versions.
Technical Details of CVE-2021-0878
Explore the specifics of the vulnerability, the affected systems, versions, and the exploitation mechanism.
Vulnerability Description
The flaw in the PowerVR kernel driver's PVRSRVBridgeServerSyncGetStatus lacks a proper size check, leading to an integer overflow and potential out-of-bounds heap access.
Affected Systems and Versions
The vulnerability impacts Android devices running the Android SoC version, presenting a significant risk for local privilege escalation.
Exploitation Mechanism
Threat actors can exploit this issue to achieve local privilege escalation without the need for additional user permissions, posing a severe security threat.
Mitigation and Prevention
Learn about the immediate steps to enhance security and prevent exploitation of CVE-2021-0878.
Immediate Steps to Take
Implement security measures to safeguard against potential exploitation, monitor for any signs of unauthorized access, and apply necessary patches.
Long-Term Security Practices
Adopt a proactive security approach, regularly update systems, conduct security assessments, and educate users on best practices to mitigate future risks.
Patching and Updates
Stay informed about security updates, install patches promptly, and follow best practices to maintain a secure environment.