CVE-2020-9918 : Security Advisory and Response
Learn about CVE-2020-9918, an out-of-bounds read vulnerability in macOS, tvOS, and watchOS fixed by Apple. Find out how it could lead to system termination or kernel memory corruption.
An out-of-bounds read vulnerability affecting macOS, tvOS, and watchOS has been addressed by Apple. This CVE can lead to unexpected system termination or corrupt kernel memory.
Understanding CVE-2020-9918
This CVE addresses an out-of-bounds read vulnerability in Apple's operating systems.
What is CVE-2020-9918?
An out-of-bounds read vulnerability was fixed in macOS Catalina 10.15.6, tvOS 13.4.8, and watchOS 6.2.8. It could allow a remote attacker to cause unexpected system termination or corrupt kernel memory.
The Impact of CVE-2020-9918
The vulnerability could be exploited by a remote attacker to disrupt system operations or compromise kernel memory.
Technical Details of CVE-2020-9918
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability involves an out-of-bounds read that was mitigated through enhanced input validation.
Affected Systems and Versions
- macOS: Less than macOS Catalina 10.15.6
- tvOS: Less than tvOS 13.4.8
- watchOS: Less than watchOS 6.2.8
Exploitation Mechanism
The vulnerability could be exploited remotely to trigger unexpected system termination or manipulate kernel memory.
Mitigation and Prevention
Steps to address and prevent the CVE.
Immediate Steps to Take
- Update affected systems to macOS Catalina 10.15.6, tvOS 13.4.8, and watchOS 6.2.8.
- Monitor for any unusual system behavior.
Long-Term Security Practices
- Regularly update software and firmware to patch vulnerabilities.
- Implement network security measures to prevent remote attacks.
Patching and Updates
- Apply security patches provided by Apple promptly.