CVE-2018-4386 in Safari
Summary
by MITRE
Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.
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Analysis
by VulDB Data Team • 09/21/2024
The vulnerability identified as CVE-2018-4386 represents a critical memory corruption flaw that impacted multiple Apple operating systems and applications. This issue stems from inadequate memory management practices that could lead to unpredictable system behavior and potential exploitation by malicious actors. The vulnerability affected versions of iOS prior to 12.1, tvOS prior to 12.1, watchOS prior to 5.1, Safari 12.0.1, iTunes 12.9.1, and iCloud for Windows 7.8, demonstrating the widespread nature of the memory handling deficiencies across Apple's ecosystem. The flaw likely involved improper memory allocation, deallocation, or access patterns that could result in buffer overflows, use-after-free conditions, or other memory corruption scenarios.
Memory corruption vulnerabilities of this nature typically fall under CWE-122, which describes buffer overflow conditions, or CWE-416, which addresses use-after-free errors. These issues are particularly dangerous because they can enable arbitrary code execution when exploited, allowing attackers to gain unauthorized access to affected systems. The vulnerability's impact extends beyond individual devices to potentially compromise user data and system integrity across Apple's platform ecosystem. Attackers could leverage such memory corruption flaws to execute malicious code with elevated privileges, potentially leading to complete system compromise or data exfiltration.
The operational impact of CVE-2018-4386 was significant for organizations and individuals using affected Apple products, as it created potential entry points for sophisticated attacks. Users running vulnerable versions of these applications faced risks including unauthorized data access, system compromise, and potential surveillance capabilities for attackers. The vulnerability's presence in Safari, iTunes, and iCloud applications meant that exploitation could occur through web browsing, file transfers, or cloud synchronization activities. Organizations relying on Apple devices for business operations needed to urgently implement patch management procedures to address this vulnerability.
Mitigation strategies for CVE-2018-4386 primarily centered on updating to patched versions of the affected software. Apple released security updates for iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, and iCloud for Windows 7.8, which included improved memory handling mechanisms. Security professionals should have implemented immediate patch deployment across all affected systems while monitoring for any signs of exploitation attempts. Network administrators could have employed additional security controls such as web application firewalls and intrusion detection systems to detect potential exploitation attempts. The vulnerability's classification under ATT&CK technique T1059.007 for command and scripting interpreter indicates that exploitation could involve automated tools or scripts targeting these memory corruption weaknesses. Organizations should have conducted vulnerability assessments to identify systems running unpatched versions and implemented continuous monitoring to detect any anomalous behavior that might indicate exploitation attempts.