CVE-2018-4147 in iOS
Summary
by MITRE
In iCloud for Windows before 7.3, Safari before 11.0.3, iTunes before 12.7.3 for Windows, and iOS before 11.2.5, multiple memory corruption issues exist and were addressed with improved memory handling.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 04/28/2020
The vulnerability identified as CVE-2018-4147 represents a series of memory corruption issues affecting multiple Apple products and services including iCloud for Windows, Safari web browser, iTunes client, and iOS operating systems. These memory corruption flaws stem from inadequate memory handling mechanisms that fail to properly validate or manage memory allocation and deallocation processes. The affected versions demonstrate a critical weakness in the software's ability to safely manage memory resources, creating potential pathways for malicious actors to exploit these vulnerabilities through carefully crafted inputs or conditions that trigger memory corruption behaviors.
The technical nature of these memory corruption issues aligns with common software security weaknesses that fall under CWE-122, which describes improper restriction of operations within the bounds of a memory buffer. The vulnerabilities manifest when the affected applications process certain inputs or perform specific operations that cause memory to be improperly accessed, overwritten, or freed without proper validation. These flaws typically occur when software fails to properly check array indices, string lengths, or memory allocation boundaries before performing operations that could lead to buffer overflows, heap corruption, or use-after-free conditions. The improper memory handling in these Apple applications creates opportunities for attackers to manipulate memory contents in ways that could lead to arbitrary code execution or system instability.
The operational impact of CVE-2018-4147 extends across multiple platforms and user scenarios, particularly affecting users of Apple's ecosystem who rely on iCloud synchronization, web browsing with Safari, media management through iTunes, and mobile device functionality through iOS. Attackers could potentially exploit these vulnerabilities to execute malicious code on target systems, gain unauthorized access to sensitive data, or disrupt normal system operations. The cross-platform nature of the vulnerability means that organizations and individuals using Apple products across different environments face similar risks, with the potential for attackers to leverage these flaws in targeted campaigns or broader exploitation efforts. The memory corruption issues could enable privilege escalation attacks, allowing attackers to gain elevated system privileges and access protected resources within the affected applications.
Mitigation strategies for CVE-2018-4147 focus on updating to patched versions of the affected software components, with Apple releasing updates for iCloud for Windows version 7.3, Safari 11.0.3, iTunes 12.7.3 for Windows, and iOS 11.2.5. Organizations should implement comprehensive patch management procedures to ensure all affected systems receive the necessary security updates. System administrators should also consider implementing additional security controls such as memory protection mechanisms, application sandboxing, and network monitoring to detect and prevent exploitation attempts. The vulnerability highlights the importance of proper memory management practices in software development and demonstrates how seemingly routine memory operations can become critical security concerns when not properly validated and protected against malicious inputs. Security teams should monitor for exploitation attempts targeting these vulnerabilities and implement appropriate defensive measures including endpoint detection and response solutions to identify potential compromise indicators.