CVE-2019-8586 in iTunes
Summary
by MITRE
Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, Safari 12.1.1, iTunes for Windows 12.9.5, iCloud for Windows 7.12. Processing maliciously crafted web content may lead to arbitrary code execution.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 09/26/2023
The vulnerability identified as CVE-2019-8586 represents a critical memory corruption issue that affected multiple Apple operating systems and applications. This flaw emerged from inadequate memory handling mechanisms within Apple's software ecosystem, specifically impacting iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, Safari 12.1.1, iTunes for Windows 12.9.5, and iCloud for Windows 7.12. The vulnerability stems from improper memory management during the processing of web content, creating opportunities for attackers to exploit memory corruption patterns that could result in arbitrary code execution. Such memory corruption vulnerabilities typically arise when software fails to properly validate or manage memory allocations, leading to situations where malicious input can overwrite critical memory segments.
The technical nature of this vulnerability aligns with CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write operations. These memory corruption flaws occur when applications fail to properly bounds-check memory accesses or handle memory deallocation processes. The exploitation pathway involves crafting malicious web content that, when processed by affected applications, triggers memory corruption that can be leveraged to execute arbitrary code. Attackers can potentially leverage this vulnerability through web-based attacks, where users inadvertently navigate to compromised websites or receive malicious web content through email attachments or other web-delivered vectors. The vulnerability's impact extends across Apple's ecosystem since multiple applications and operating systems share common memory management components and web rendering engines.
The operational impact of CVE-2019-8586 presents significant security risks for organizations and individual users who rely on Apple's software stack. The potential for arbitrary code execution means that successful exploitation could allow attackers to gain full control over affected systems, potentially leading to data theft, system compromise, or further lateral movement within networks. This vulnerability is particularly concerning because it affects widely used applications like Safari, iTunes, and iCloud, which are frequently accessed by users and often run with elevated privileges. The cross-platform nature of the vulnerability means that organizations cannot assume protection simply by updating one component, as multiple applications across different operating systems require patching to ensure complete protection. Attackers may utilize this vulnerability in targeted campaigns where they craft specific web content designed to exploit the memory corruption patterns in affected versions.
Mitigation strategies for CVE-2019-8586 primarily focus on immediate patch deployment and operational security measures. Organizations should prioritize updating all affected systems to their respective patched versions, including iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, Safari 12.1.1, iTunes for Windows 12.9.5, and iCloud for Windows 7.12. The ATT&CK framework categorizes this vulnerability under technique T1059.007 for command and scripting interpreter, as the arbitrary code execution capability enables attackers to run malicious commands. Network administrators should implement web filtering solutions and content inspection to prevent access to known malicious domains. Additional protective measures include enabling sandboxing features, restricting user privileges, and implementing monitoring for unusual system behavior that might indicate exploitation attempts. Security teams should also conduct vulnerability assessments to ensure all endpoints are properly patched and establish incident response procedures to address potential exploitation attempts. The remediation process should include thorough testing of patches in controlled environments before widespread deployment to avoid potential compatibility issues with existing applications or system configurations.