CVE-2018-4341 in macOS
Summary
by MITRE
A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.
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Analysis
by VulDB Data Team • 07/23/2024
This vulnerability represents a memory corruption flaw that existed in Apple's operating systems prior to the release of iOS 12, macOS Mojave 10.14, tvOS 12, and watchOS 5. The issue stems from inadequate memory management practices that could lead to unpredictable system behavior and potential exploitation by malicious actors. Memory corruption vulnerabilities typically arise when software fails to properly manage memory allocation, deallocation, or access patterns, creating opportunities for attackers to manipulate system resources. The vulnerability affects the foundational memory handling mechanisms within Apple's operating system kernels and system frameworks, potentially allowing adversaries to execute arbitrary code or cause system instability. According to CWE classification, this vulnerability aligns with CWE-122, which describes "Heap-based Buffer Overflow" and related memory corruption issues that occur when programs write beyond allocated buffer boundaries. The impact of such vulnerabilities extends beyond simple crashes, as they can enable privilege escalation, information disclosure, or complete system compromise. The affected versions represent a significant portion of Apple's user base at the time, making this a critical security concern for organizations relying on these platforms. The fix implemented by Apple involved enhanced memory handling procedures that properly validate buffer boundaries and implement stricter memory allocation controls. This remediation addresses the root cause by ensuring that memory operations adhere to established security boundaries and prevent unauthorized access to system resources. Organizations should note that this vulnerability falls under the ATT&CK framework's technique T1059, which covers command and control through system manipulation, as memory corruption can provide attackers with pathways to execute malicious code. The vulnerability's presence in multiple Apple platforms demonstrates the interconnected nature of Apple's ecosystem and the importance of comprehensive patch management across all devices. System administrators should prioritize updating affected devices to prevent exploitation, as the memory corruption could potentially be leveraged for advanced persistent threats targeting Apple environments. The remediation approach taken by Apple reflects industry best practices for memory safety, emphasizing the need for robust input validation and memory management protocols in system-level software development. This vulnerability serves as a reminder of the critical importance of maintaining up-to-date security patches across all operating system components, particularly those handling low-level memory operations that form the foundation of system security.