CVE-2018-4465 in macOS
Summary
by MITRE
A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, watchOS 5.1.2.
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Analysis
by VulDB Data Team • 04/18/2020
This vulnerability represents a memory corruption flaw that emerged in Apple's operating systems prior to specific security updates. The issue stems from inadequate memory management practices that could lead to unpredictable system behavior and potential exploitation by malicious actors. The vulnerability affected multiple Apple platforms including iOS, macOS, tvOS, and watchOS, indicating a systemic memory handling weakness within Apple's software architecture. The affected versions demonstrate that this was not an isolated incident but rather a widespread issue requiring comprehensive patching across Apple's ecosystem.
The technical nature of this memory corruption vulnerability aligns with common CWE categories related to memory safety issues and improper memory handling. Such flaws typically arise from buffer overflows, use-after-free conditions, or other memory management errors that can be exploited to execute arbitrary code or cause system instability. The fact that this required improved memory handling suggests that the original implementation contained insufficient bounds checking or memory allocation safeguards. This type of vulnerability falls under the ATT&CK framework's system binary exploitation techniques where adversaries target memory corruption weaknesses to gain unauthorized access to systems.
The operational impact of this vulnerability extends across Apple's consumer and enterprise user base, potentially exposing devices to remote code execution attacks. Users running affected versions faced significant security risks as attackers could leverage this memory corruption to compromise their devices. The vulnerability's presence in multiple operating systems indicates that Apple's security teams needed to implement consistent memory handling improvements across their platform boundaries. Organizations relying on Apple devices for business operations would have required immediate patching to maintain security posture and protect sensitive data.
Mitigation strategies for this vulnerability centered on applying the respective security updates released by Apple. The patches included in iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, and watchOS 5.1.2 addressed the underlying memory handling issues through improved allocation and deallocation mechanisms. System administrators needed to prioritize deployment of these updates across all affected devices to prevent exploitation. The remediation process required careful consideration of compatibility issues and testing procedures to ensure that the security patches did not introduce regressions in system functionality. Organizations should have implemented automated update management systems to ensure comprehensive coverage of all endpoints running affected versions of Apple's operating systems.