CVE-2020-27911 Explained : Impact and Mitigation
Learn about CVE-2020-27911, an integer overflow vulnerability in Apple products like macOS, watchOS, iOS, and more. Find out the impact, affected systems, and mitigation steps.
An integer overflow vulnerability affecting multiple Apple products has been addressed through improved input validation. This CVE impacts watchOS, iOS and iPadOS, tvOS, and macOS versions.
Understanding CVE-2020-27911
This CVE involves a critical integer overflow vulnerability that could potentially lead to unexpected application termination or arbitrary code execution.
What is CVE-2020-27911?
CVE-2020-27911 is an integer overflow vulnerability that has been fixed in various Apple products, including macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, tvOS 14.2, and iTunes 12.11 for Windows.
The Impact of CVE-2020-27911
The vulnerability could be exploited by a remote attacker to cause unexpected application termination or execute arbitrary code on the affected systems.
Technical Details of CVE-2020-27911
This section provides more in-depth technical details about the CVE.
Vulnerability Description
The vulnerability is due to an integer overflow issue that has been mitigated through enhanced input validation mechanisms.
Affected Systems and Versions
- watchOS: Less than version 7.1
- iOS and iPadOS: Less than version 14.2
- tvOS: Less than version 14.2
- macOS: Less than versions 11.0, 12.11, and 11.5
Exploitation Mechanism
The vulnerability could be exploited remotely by an attacker to trigger unexpected application termination or execute arbitrary code.
Mitigation and Prevention
To address and prevent the exploitation of CVE-2020-27911, the following steps are recommended:
Immediate Steps to Take
- Update affected Apple products to the fixed versions mentioned above.
- Monitor official Apple security advisories for any further updates or patches.
Long-Term Security Practices
- Regularly update all software and operating systems to the latest versions.
- Implement strong network security measures to prevent remote attacks.
Patching and Updates
- Apply all security patches and updates provided by Apple promptly to ensure protection against known vulnerabilities.