CVE-2018-4382 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 • 01/21/2025
The vulnerability identified as CVE-2018-4382 represents a critical memory corruption issue that affected multiple Apple operating systems and applications. This flaw emerged from inadequate memory handling practices within Apple's software ecosystem, specifically impacting versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, and iCloud for Windows 7.8. The vulnerability falls under the category of memory safety issues that can lead to unpredictable behavior and potential exploitation by malicious actors.
The technical nature of this memory corruption vulnerability stems from improper memory management routines that fail to properly validate or handle memory allocations and deallocations. When applications process user input or parse data structures, the flawed memory handling can result in buffer overflows, use-after-free conditions, or other memory corruption scenarios that allow attackers to manipulate memory contents. This type of vulnerability is particularly dangerous because it can lead to arbitrary code execution when exploited, as attackers can manipulate memory layout to redirect program execution flow. The issue is classified as a memory safety vulnerability and aligns with common CWE entries such as CWE-121 for buffer overflow and CWE-416 for use-after-free conditions.
The operational impact of CVE-2018-4382 extends across multiple attack surfaces within Apple's ecosystem, affecting mobile devices, desktop applications, and cloud services. Attackers could potentially exploit this vulnerability through various vectors including malicious websites loaded in Safari, specially crafted files processed by iTunes, or through iCloud synchronization processes. The broad scope of affected products means that successful exploitation could provide attackers with persistent access to user devices, potentially leading to data theft, privacy violations, or full system compromise. This vulnerability represents a significant risk to enterprise environments where Apple devices are extensively deployed, as it could enable attackers to gain unauthorized access to sensitive corporate data.
Security mitigations for CVE-2018-4382 primarily involve applying the official security updates released by Apple, which include improved memory handling routines and enhanced input validation mechanisms. Organizations should prioritize immediate deployment of iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, and iCloud for Windows 7.8 updates to protect their systems. Additionally, network administrators should implement monitoring solutions to detect potential exploitation attempts and consider deploying application whitelisting policies to limit the execution of potentially malicious code. The vulnerability demonstrates the importance of regular patch management and continuous security monitoring as recommended by industry frameworks such as NIST cybersecurity guidelines and MITRE ATT&CK framework, which categorize memory corruption vulnerabilities under the execution and privilege escalation attack patterns.