CVE-2012-0598 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-2012-0598 represents a critical memory corruption flaw within WebKit, the rendering engine that powers Apple's Safari browser and iOS web content processing. This vulnerability specifically affected Apple iOS versions prior to 5.1 and iTunes versions before 10.6, creating a significant attack surface that malicious actors could exploit to gain unauthorized code execution capabilities. The flaw resides in how WebKit processes certain web content, particularly when handling crafted websites designed to trigger memory corruption patterns that ultimately lead to system instability or complete application crashes.
The technical implementation of this vulnerability stems from improper memory management within WebKit's handling of web page elements, particularly those involving complex JavaScript execution and DOM manipulation. Attackers could construct malicious web pages containing specifically crafted HTML, JavaScript, or CSS elements that would cause the browser engine to improperly allocate or access memory regions. This memory corruption could manifest as buffer overflows, use-after-free conditions, or other memory management errors that allow attackers to either execute arbitrary code with the privileges of the affected application or cause deliberate denial of service through application crashes. The vulnerability operates at the intersection of multiple security domains including browser security, memory management, and web content rendering, making it particularly dangerous due to its potential for remote code execution.
The operational impact of CVE-2012-0598 extends beyond simple application instability, as it creates opportunities for sophisticated attacks that could compromise entire user systems. When exploited, this vulnerability could enable attackers to bypass security controls, access sensitive user data, or establish persistent access points within affected systems. The fact that it affected both iOS mobile devices and desktop iTunes applications created a wide attack surface that could be leveraged across multiple platforms. Security researchers have categorized this vulnerability under CWE-125, which represents "Out-of-bounds Read" conditions, and it aligns with ATT&CK techniques involving privilege escalation and remote code execution through browser exploitation frameworks. The vulnerability's classification as a remote code execution flaw means that simply visiting a malicious website could result in system compromise without any user interaction beyond normal browsing behavior.
Mitigation strategies for CVE-2012-0598 required immediate system updates to patch the underlying WebKit memory corruption issues. Users were strongly advised to upgrade to iOS 5.1 or later versions and iTunes 10.6 or newer releases that contained the necessary security patches. Organizations implementing security controls needed to ensure that all affected systems were updated promptly, as the vulnerability could be exploited through social engineering campaigns or compromised websites that would automatically trigger the malicious code execution. Network administrators should have implemented web filtering solutions to block access to known malicious domains while also monitoring for unusual traffic patterns that might indicate exploitation attempts. The vulnerability also highlighted the importance of regular security patch management and the need for organizations to maintain up-to-date threat intelligence feeds to identify and respond to similar vulnerabilities in web rendering engines that could pose equivalent risks to their environments.