CVE-2021-0885 : What You Need to Know
Learn about CVE-2021-0885, a critical Android vulnerability that could allow attackers to escalate privileges locally without extra permissions. Find out how to mitigate and prevent exploitation.
The CVE-2021-0885 vulnerability in Android could allow an attacker to perform an elevation of privilege attack, potentially leading to local escalation of privileges without requiring additional execution privileges.
Understanding CVE-2021-0885
This section will cover the details surrounding CVE-2021-0885.
What is CVE-2021-0885?
The CVE-2021-0885 vulnerability exists in the PVRSRVBridgeSyncPrimOpTake of the PowerVR kernel driver in Android. The issue arises due to a missing size check, which could result in an integer overflow leading to out-of-bounds heap access. This flaw has the potential to enable a local escalation of privilege without the need for any extra execution privileges.
The Impact of CVE-2021-0885
The impact of CVE-2021-0885 is significant as it allows an attacker to exploit the vulnerability to gain escalated privileges on the affected Android systems, posing a serious security risk.
Technical Details of CVE-2021-0885
This section will delve into the technical specifics of CVE-2021-0885.
Vulnerability Description
The vulnerability stems from a missing size check in the PowerVR kernel driver, facilitating an integer overflow and subsequent out-of-bounds heap access.
Affected Systems and Versions
The affected systems by CVE-2021-0885 include Android devices running the 'Android SoC' version.
Exploitation Mechanism
Exploiting CVE-2021-0885 could allow threat actors to execute an elevation of privilege attack without the need for user interaction, potentially compromising the security of Android devices.
Mitigation and Prevention
In this section, we will discuss how to mitigate and prevent the CVE-2021-0885 vulnerability.
Immediate Steps to Take
Users and administrators should apply security patches and updates provided by Android to address the CVE-2021-0885 vulnerability and reduce the risk of exploitation.
Long-Term Security Practices
Implementing strong security practices, such as regular software updates, security training, and employing defense-in-depth strategies, can enhance the overall security posture and help prevent similar vulnerabilities.
Patching and Updates
Regularly check for security bulletins and updates from Android to ensure that systems are up to date with the latest security patches and mitigations.