CVE-2019-8576 Explained : Impact and Mitigation
Learn about CVE-2019-8576, an out-of-bounds read vulnerability in Apple's iOS, macOS, tvOS, and watchOS, allowing local users to trigger system termination or access kernel memory. Find mitigation steps and affected versions here.
Apple has addressed an out-of-bounds read vulnerability in iOS, macOS, tvOS, and watchOS that could allow a local user to trigger unexpected system termination or access kernel memory.
Understanding CVE-2019-8576
This CVE identifies a security issue in Apple's operating systems that has been mitigated through improved bounds checking.
What is CVE-2019-8576?
CVE-2019-8576 is an out-of-bounds read vulnerability that has been fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, and watchOS 5.2.1.
The Impact of CVE-2019-8576
The vulnerability could potentially be exploited by a local user to cause unexpected system termination or retrieve kernel memory.
Technical Details of CVE-2019-8576
Apple has provided specific details regarding the affected systems and versions.
Vulnerability Description
The issue stemmed from inadequate bounds checking, which has now been rectified in the mentioned versions.
Affected Systems and Versions
- iOS versions prior to 12.3
- macOS versions prior to Mojave 10.14.5
- tvOS versions prior to 12.3
- watchOS versions prior to 5.2.1
Exploitation Mechanism
A local user could exploit this vulnerability to trigger unexpected system termination or access kernel memory.
Mitigation and Prevention
Apple recommends immediate actions and long-term security practices to address CVE-2019-8576.
Immediate Steps to Take
- Update affected devices to the specified fixed versions.
- Monitor for any unusual system behavior.
Long-Term Security Practices
- Regularly update devices to the latest software versions.
- Implement strong access controls and user permissions.
Patching and Updates
Ensure that all Apple devices are regularly patched and updated to the latest recommended versions.