CVE-2021-0872 : Vulnerability Insights and Analysis

A detailed overview of CVE-2021-0872 highlighting the vulnerability, impact, technical details, and mitigation strategies.

Understanding CVE-2021-0872

In PVRSRVBridgeRGXKickVRDM of the PowerVR kernel driver, a missing size check leads to a potential integer overflow, allowing out-of-bounds heap access, creating a risk of local privilege escalation without requiring additional execution privileges.

What is CVE-2021-0872?

The CVE-2021-0872 vulnerability stems from a missing size check in the PowerVR kernel driver, potentially enabling an attacker to exploit an integer overflow, leading to out-of-bounds heap access with the risk of local privilege escalation.

The Impact of CVE-2021-0872

The impact of CVE-2021-0872 lies in the ability for threat actors to leverage the vulnerability to gain escalated privileges locally without the need for additional execution permissions, posing a significant risk to affected systems running Android SoC.

Technical Details of CVE-2021-0872

This section delves into the vulnerability description, affected systems, and the exploitation mechanism of CVE-2021-0872.

Vulnerability Description

The vulnerability in PVRSRVBridgeRGXKickVRDM allows for the exploitation of an integer overflow, potentially resulting in out-of-bounds heap access due to a missing size check in the PowerVR kernel driver.

Affected Systems and Versions

The CVE-2021-0872 impacts Android SoC under the Android product, highlighting the versions susceptible to the vulnerability.

Exploitation Mechanism

Exploiting the missing size check and integer overflow in PVRSRVBridgeRGXKickVRDM could enable attackers to achieve out-of-bounds heap access, facilitating local privilege escalation on the affected systems.

Mitigation and Prevention

Explore critical steps to mitigate the risks associated with CVE-2021-0872, focusing on immediate actions and long-term security practices.

Immediate Steps to Take

Immediate actions involve security measures to address the vulnerability promptly and prevent potential exploitation leading to local privilege escalation.

Long-Term Security Practices

Adopting long-term security practices aids in fortifying systems against similar vulnerabilities, enhancing overall security posture and resilience.

Patching and Updates

Regularly applying patches and updates addressing CVE-2021-0872 is crucial in safeguarding systems from potential exploits and ensuring comprehensive protection.