CVE-2019-8517 : Vulnerability Insights and Analysis
Learn about CVE-2019-8517 affecting Apple products. Find out how processing a malicious font can expose process memory. Take immediate steps to update affected systems and prevent exploitation.
This CVE-2019-8517 article provides details about a vulnerability affecting Apple products.
Understanding CVE-2019-8517
What is CVE-2019-8517?
Enhanced bounds checking has resolved an out-of-bounds read issue in iOS 12.2, macOS Mojave 10.14.4, tvOS 12.2, and watchOS 5.2. Manipulating a font maliciously could expose process memory.
The Impact of CVE-2019-8517
Processing a malicious font could lead to the disclosure of process memory.
Technical Details of CVE-2019-8517
Vulnerability Description
Improved bounds checking fixed an out-of-bounds read problem. Malicious font processing may expose process memory.
Affected Systems and Versions
- iOS: Versions earlier than 12.2
- macOS: Versions earlier than Mojave 10.14.4
- tvOS: Versions earlier than 12.2
- watchOS: Versions earlier than 5.2
Exploitation Mechanism
If a font is manipulated maliciously, it could potentially expose the memory of the process.
Mitigation and Prevention
Immediate Steps to Take
- Update affected systems to iOS 12.2, macOS Mojave 10.14.4, tvOS 12.2, and watchOS 5.2.
- Avoid opening or processing fonts from untrusted sources.
Long-Term Security Practices
- Regularly update software and firmware to the latest versions.
- Implement security best practices to prevent font-related vulnerabilities.
Patching and Updates
Apply patches and updates provided by Apple to address the vulnerability.