CVE-2012-0594 in iOS
Summary
by MITRE
WebKit, as used in Apple iOS before 5.1 and iTunes before 10.6, 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-2012-03-07-1 and APPLE-SA-2012-03-07-2.
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Analysis
by VulDB Data Team • 01/11/2025
The vulnerability identified as CVE-2012-0594 represents a critical memory corruption flaw within WebKit engine components that power Apple's iOS and iTunes applications. This vulnerability specifically affects versions of Apple iOS prior to 5.1 and iTunes versions before 10.6, creating a significant security risk for users of these platforms. The flaw operates through a sophisticated attack vector that leverages maliciously crafted websites to exploit memory management issues within the WebKit rendering engine, potentially allowing remote code execution or system crashes. The vulnerability's classification as a memory corruption issue aligns with common patterns found in browser engine exploits where improper memory handling creates opportunities for attackers to manipulate program execution flow.
The technical implementation of this vulnerability involves WebKit's handling of specific web content elements that trigger memory corruption during rendering processes. Attackers can craft web pages containing malformed data structures or improper memory allocations that, when processed by the vulnerable WebKit engine, cause memory corruption errors. These memory corruption events typically manifest as heap corruption or stack corruption issues that can be leveraged to execute arbitrary code with the privileges of the affected application. The vulnerability differs from other WebKit-related CVEs referenced in APPLE-SA-2012-03-07-1 and APPLE-SA-2012-03-07-2, indicating it operates through distinct code paths or memory handling mechanisms within the WebKit engine. This distinction suggests multiple attack surfaces within the same software component, highlighting the complexity of browser engine security vulnerabilities.
The operational impact of CVE-2012-0594 extends beyond simple application crashes to potentially enable full system compromise through remote code execution. When exploited successfully, this vulnerability allows attackers to execute malicious code on affected systems without requiring local access or user interaction beyond visiting a compromised website. The memory corruption nature of the flaw means that successful exploitation could lead to privilege escalation, data theft, or persistent backdoor installation. The vulnerability affects not only iOS devices but also iTunes installations on desktop systems, creating a unified attack surface across Apple's ecosystem. This cross-platform impact increases the potential attack surface and makes the vulnerability particularly concerning for enterprise environments where both mobile and desktop systems may be in use.
Mitigation strategies for CVE-2012-0594 primarily focus on immediate software updates and system hardening measures. Apple's recommended solution involves updating to iOS 5.1 or later versions and iTunes 10.6 or later, which contain patches addressing the memory corruption issues in WebKit. Organizations should implement comprehensive patch management processes to ensure all affected systems receive updates promptly. Network-level protections can include web content filtering and sandboxing measures that limit the impact of potentially malicious websites. The vulnerability's nature as a memory corruption issue makes it particularly susceptible to exploit prevention techniques such as address space layout randomization, data execution prevention, and stack canaries. Security professionals should also consider implementing monitoring solutions to detect potential exploitation attempts through unusual memory access patterns or application behavior anomalies. From a compliance perspective, this vulnerability aligns with various security frameworks including those referenced in the CWE database under memory corruption categories, and represents a significant concern for organizations following ATT&CK framework classifications for browser-based attacks and code execution techniques.