CVE-2020-27950 : What You Need to Know
Learn about CVE-2020-27950 addressing a memory initialization issue in Apple products, potentially allowing disclosure of kernel memory. Find out affected versions and mitigation steps.
A memory initialization issue in Apple products has been addressed, affecting various versions of watchOS, iOS and iPadOS, and macOS.
Understanding CVE-2020-27950
What is CVE-2020-27950?
This CVE addresses a memory initialization issue in Apple products that could allow a malicious application to disclose kernel memory.
The Impact of CVE-2020-27950
The vulnerability could potentially lead to the exposure of sensitive kernel memory by a malicious application.
Technical Details of CVE-2020-27950
Vulnerability Description
The issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, and macOS Catalina 10.15.7 Update.
Affected Systems and Versions
- watchOS: < 7.1
- iOS and iPadOS: < 14.2
- macOS: < 11.0, < 12.4, < 6.2, < 5.3, < 2020, < 10.15
Exploitation Mechanism
A malicious application could exploit this vulnerability to reveal kernel memory.
Mitigation and Prevention
Immediate Steps to Take
- Update affected systems to the latest patched versions.
- Avoid downloading and running untrusted applications.
Long-Term Security Practices
- Regularly update all software and firmware to the latest versions.
- Implement security best practices and use reputable security software.
Patching and Updates
Apply the following updates to mitigate the vulnerability:
- macOS Big Sur 11.0.1
- watchOS 7.1
- iOS 12.4.9
- watchOS 6.2.9
- Security Update 2020-006 High Sierra
- Security Update 2020-006 Mojave
- iOS 14.2 and iPadOS 14.2
- watchOS 5.3.9
- macOS Catalina 10.15.7 Supplemental Update
- macOS Catalina 10.15.7 Update