CVE-2021-1805 : What You Need to Know
Discover the impact of CVE-2021-1805, an out-of-bounds write vulnerability in macOS, allowing unauthorized code execution. Learn about affected systems, exploitation, and mitigation.
An out-of-bounds write vulnerability in macOS has been identified and fixed by Apple. The vulnerability could allow an application to execute arbitrary code with kernel privileges.
Understanding CVE-2021-1805
This section will cover the details of the CVE-2021-1805 vulnerability in macOS.
What is CVE-2021-1805?
CVE-2021-1805 is an out-of-bounds write vulnerability in macOS that allows an application to potentially execute arbitrary code with kernel privileges.
The Impact of CVE-2021-1805
The impact of this vulnerability is significant as it could lead to a potential security breach by enabling unauthorized code execution with elevated privileges.
Technical Details of CVE-2021-1805
Let's delve into the technical aspects of the CVE-2021-1805 vulnerability.
Vulnerability Description
The vulnerability involves an out-of-bounds write issue that results from inadequate input validation. This allows an application to access and modify kernel memory beyond the bounds of allocated memory.
Affected Systems and Versions
macOS versions earlier than 11.2 are affected by this vulnerability. Specifically, macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, and macOS Mojave 10.14.6 Security Update 2021-002 have addressed this issue.
Exploitation Mechanism
The vulnerability could be exploited by a malicious application to gain unauthorized access and execute arbitrary code with kernel privileges on the affected macOS systems.
Mitigation and Prevention
Learn how to mitigate and prevent the risks associated with CVE-2021-1805.
Immediate Steps to Take
It is recommended to update macOS to the latest versions mentioned above to prevent any exploitation of this vulnerability.
Long-Term Security Practices
Apart from patching, adopting secure coding practices, restricting user permissions, and monitoring system activities can enhance long-term security.
Patching and Updates
Regularly check for security updates from Apple and apply patches promptly to protect your system from known vulnerabilities.