CVE-2019-8622 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, watchOS 5.2.1, 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.
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Analysis
by VulDB Data Team • 01/12/2025
The vulnerability identified as CVE-2019-8622 represents a critical memory corruption issue that affects multiple Apple operating systems and applications. This flaw resides in the memory handling mechanisms of iOS, macOS, tvOS, and watchOS platforms, as well as Safari and iTunes applications. The vulnerability stems from inadequate memory management practices that fail to properly validate or sanitize memory operations during web content processing. According to industry standards, this issue maps to CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds writes. The memory corruption occurs when applications process maliciously crafted web content, creating a pathway for attackers to exploit memory handling weaknesses. Attackers can leverage this vulnerability by delivering specially crafted web pages or content that triggers the flawed memory operations, potentially leading to complete system compromise. The flaw specifically affects versions prior to the security updates released in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1, Safari 12.1.1, iTunes for Windows 12.9.5, and iCloud for Windows 7.12.
The operational impact of CVE-2019-8622 extends beyond simple memory corruption, as it enables arbitrary code execution capabilities that align with ATT&CK technique T1059.301 for command and scripting interpreter. When successfully exploited, this vulnerability allows attackers to execute malicious code with the privileges of the affected application, potentially leading to full system compromise. The attack surface includes web browsers, email clients, and any application that processes web content, making it particularly dangerous in enterprise environments where users frequently access untrusted web content. The memory corruption issues typically manifest as heap-based buffer overflows or use-after-free conditions, which are common attack vectors in modern exploit development. These conditions can be triggered through various means including visiting malicious websites, opening specially crafted email attachments, or interacting with compromised web applications that deliver the malicious payload.
Mitigation strategies for CVE-2019-8622 primarily focus on applying the vendor-provided security patches and updates as outlined in the affected software versions. System administrators should prioritize immediate deployment of the security updates for iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1, Safari 12.1.1, iTunes for Windows 12.9.5, and iCloud for Windows 7.12. Additionally, organizations should implement network-based security controls including web filtering solutions and intrusion prevention systems that can detect and block malicious web content. The implementation of sandboxing mechanisms and application whitelisting can provide additional layers of protection by limiting the execution scope of potentially malicious code. Security monitoring should include detection of unusual memory allocation patterns and potential exploitation attempts, leveraging endpoint detection and response solutions that can identify the specific memory corruption behaviors associated with this vulnerability. Organizations should also consider implementing security awareness training to reduce the risk of users inadvertently accessing malicious web content that could exploit this memory handling flaw.