CVE-2012-3606 in iOS
Summary
by MITRE
WebKit, as used in Apple iTunes before 10.7, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2012-09-12-1.
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Analysis
by VulDB Data Team • 04/22/2021
The vulnerability identified as CVE-2012-3606 represents a critical memory corruption flaw within WebKit engine components that were integrated into Apple iTunes version 10.6 and earlier. This security weakness resides in the web rendering capabilities of iTunes, which leverages WebKit for displaying web content within its user interface. The vulnerability specifically affects the processing of crafted web content that could be delivered through malicious websites, creating an environment where remote attackers can exploit the underlying memory management issues within the WebKit rendering engine.
The technical exploitation of this vulnerability occurs when a malicious website delivers specially crafted content that triggers memory corruption within the WebKit engine's memory management subsystem. This memory corruption manifests as arbitrary code execution privileges for remote attackers or can result in application crashes and denial of service conditions. The flaw operates through the improper handling of memory allocations and deallocations within the web rendering pipeline, allowing attackers to manipulate memory addresses and execute malicious instructions within the iTunes process context. The vulnerability is distinct from other WebKit-related issues documented in APPLE-SA-2012-09-12-1, indicating it represents a separate memory management flaw within the engine's architecture.
From an operational perspective, this vulnerability poses significant risks to users who may inadvertently visit compromised websites while iTunes is running or when the application automatically loads web content. The memory corruption can lead to complete application crashes, requiring users to restart iTunes, or more dangerously, enable attackers to execute arbitrary code with the privileges of the iTunes process. This creates potential for data theft, system compromise, or further escalation attacks against the underlying operating system. The vulnerability affects users across multiple operating systems where iTunes was available, including macOS and potentially Windows versions that supported the affected iTunes implementation.
Security professionals should note that this vulnerability aligns with CWE-119, which addresses "Improper Access to Memory Location," and represents a classic buffer overflow or memory corruption scenario that can be exploited through web-based attacks. The ATT&CK framework categorizes this under TA0002 (Execution) and TA0005 (Defense Evasion) techniques, as attackers can leverage this vulnerability to execute malicious code and potentially evade security controls. The remediation strategy involves updating to iTunes version 10.7 or later, which includes patches addressing the memory corruption issues within the WebKit engine. Organizations should prioritize this update across their fleets and consider implementing network-based protections such as web filtering solutions that can block access to known malicious domains until full patch deployment occurs. Additionally, users should be educated about the risks of visiting untrusted websites while iTunes is running, particularly in environments where the application may automatically load web content or display online features.