CVE-2021-30865 : What You Need to Know
CVE-2021-30865 pertains to an out-of-bounds read vulnerability in macOS versions prior to 11.6 and any version released before 2021. Learn about the impact, technical details, and mitigation steps.
This CVE-2021-30865 relates to an out-of-bounds read vulnerability in macOS, affecting versions less than 11.6 and any version before 2021. The vulnerability has been addressed with improved input validation in macOS Big Sur 11.6 and Security Update 2021-005 Catalina.
Understanding CVE-2021-30865
This section will delve into the details of the CVE-2021-30865 vulnerability.
What is CVE-2021-30865?
The CVE-2021-30865 vulnerability involves an out-of-bounds read issue that could allow a malicious application to execute arbitrary code with kernel privileges.
The Impact of CVE-2021-30865
The vulnerability could potentially lead to unauthorized code execution with elevated privileges, posing a significant security risk to affected systems.
Technical Details of CVE-2021-30865
This section will provide technical specifics of the CVE-2021-30865 vulnerability.
Vulnerability Description
The vulnerability stems from inadequate input validation, enabling malicious actors to exploit the out-of-bounds read to execute arbitrary code.
Affected Systems and Versions
macOS versions prior to 11.6 and versions released before 2021 are susceptible to this security flaw.
Exploitation Mechanism
By leveraging the out-of-bounds read vulnerability, a malevolent application could potentially gain kernel privileges, enabling the execution of unauthorized code.
Mitigation and Prevention
Below are steps to mitigate the CVE-2021-30865 vulnerability and prevent potential exploitation.
Immediate Steps to Take
Users are advised to update their macOS systems to Big Sur 11.6 or implement Security Update 2021-005 Catalina to patch the vulnerability.
Long-Term Security Practices
Employing proper input validation, maintaining regular system updates, and exercising caution when installing third-party applications are essential for long-term security.
Patching and Updates
Regularly monitor official Apple security updates and promptly install patches to protect systems from emerging vulnerabilities.