CVE-2011-3032 in iOS
Summary
by MITRE
Use-after-free vulnerability in Google Chrome before 17.0.963.65 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the handling of SVG values.
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Analysis
by VulDB Data Team • 03/01/2025
The vulnerability identified as CVE-2011-3032 represents a critical use-after-free flaw in Google Chrome versions prior to 17.0.963.65 that exposes users to potential remote code execution and denial of service attacks. This vulnerability specifically affects the browser's handling of Scalable Vector Graphics values, which are commonly used in web applications for rendering complex graphics and visual elements. The issue stems from improper memory management within Chrome's rendering engine when processing certain SVG attributes and elements, creating conditions where freed memory locations could be accessed by malicious code.
The technical exploitation of this vulnerability occurs when Chrome processes malformed or specially crafted SVG content that triggers memory deallocation followed by subsequent access to the freed memory region. This use-after-free condition manifests in the browser's SVG processing pipeline where objects are not properly validated before memory operations. The flaw allows attackers to manipulate the browser's memory layout through carefully constructed SVG elements, potentially leading to arbitrary code execution or system instability. According to CWE-416, this vulnerability directly maps to the use of freed memory condition, while the ATT&CK framework categorizes this under technique T1203 for exploitation of memory corruption vulnerabilities.
The operational impact of CVE-2011-3032 extends beyond simple denial of service scenarios as the vulnerability could enable remote attackers to execute arbitrary code on affected systems. When exploited successfully, this vulnerability allows adversaries to bypass security restrictions and gain unauthorized access to user systems, potentially leading to data theft, system compromise, or further lateral movement within networks. The vulnerability affects all Chrome users who encounter malicious SVG content, making it particularly dangerous in web-based attack scenarios where users may unknowingly visit compromised websites or receive malicious emails containing embedded SVG attachments.
Mitigation strategies for CVE-2011-3032 primarily involve immediate patching of Chrome browsers to versions 17.0.963.65 or later, which contain the necessary memory management fixes. Organizations should implement comprehensive browser update policies and maintain current security patches across all user systems. Additional protective measures include web application firewalls that can detect and block suspicious SVG content, browser security configurations that restrict SVG processing, and user education about avoiding untrusted websites. Security professionals should also monitor for exploitation attempts and consider implementing network-based intrusion detection systems that can identify patterns associated with this specific vulnerability. The vulnerability demonstrates the critical importance of regular security updates and proper memory management practices in modern web browsers, as it represents a classic example of how browser rendering engines can become attack vectors when memory safety mechanisms are insufficiently implemented.