CVE-2016-1620 in Chrome
Summary
by MITRE
Multiple unspecified vulnerabilities in Google Chrome before 48.0.2564.82 allow attackers to cause a denial of service or possibly have other impact via unknown vectors.
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Analysis
by VulDB Data Team • 07/06/2022
The vulnerability identified as CVE-2016-1620 represents a collection of undisclosed security flaws within Google Chrome browser versions prior to 48.0.2564.82. This vulnerability class demonstrates the complexity and sophistication of modern browser security issues where multiple attack vectors can exist within a single software component. The affected versions of Chrome were particularly concerning as they represented widely deployed browser software used by millions of users globally, making the potential impact of these unspecified vulnerabilities significant across enterprise and individual user environments. The lack of specific details about the exact nature of these vulnerabilities in the initial description reflects the common practice of security researchers and vendors to withhold technical specifics until patches are available to prevent exploitation during the disclosure period.
The technical nature of these unspecified vulnerabilities suggests they likely reside within Chrome's core rendering engine or JavaScript execution environment where memory corruption issues commonly occur. Based on the timeline and version affected, these vulnerabilities may have involved heap-based buffer overflows, use-after-free conditions, or other memory management flaws that could be exploited through carefully crafted web content. The vulnerability classification aligns with common attack patterns documented in the attack tree model where browser-based exploits typically leverage memory corruption vulnerabilities to execute arbitrary code or cause system instability. These types of vulnerabilities often map to CWE entries such as CWE-121 for heap-based buffer overflow or CWE-476 for null pointer dereference, though the specific mapping would require detailed analysis of the patched code.
The operational impact of CVE-2016-1620 extends beyond simple denial of service scenarios to potentially enable more severe consequences including remote code execution and privilege escalation. Attackers could leverage these vulnerabilities through malicious websites, email attachments, or compromised web content to gain unauthorized access to user systems. The browser environment provides a rich attack surface where successful exploitation could lead to full system compromise, data theft, or persistent backdoor installation. Organizations relying on Chrome for business operations faced significant risk as these vulnerabilities could be exploited in targeted attacks against specific user groups or through mass phishing campaigns. The potential for cross-site scripting attacks and other web-based exploitation techniques would have made these vulnerabilities particularly dangerous in enterprise environments where users regularly access untrusted web content.
Mitigation strategies for CVE-2016-1620 centered primarily on immediate patch deployment and browser updates as recommended by Google and security vendors. Organizations should have implemented automated update mechanisms to ensure all Chrome installations were upgraded to version 48.0.2564.82 or later. Browser hardening techniques including disabling unnecessary plugins, implementing content security policies, and using sandboxing features would have provided additional protection layers. Network security controls such as web application firewalls and proxy filtering could have helped reduce exposure to malicious web content. The vulnerability also highlighted the importance of maintaining current threat intelligence feeds and security monitoring to detect exploitation attempts. According to the mitre attack framework, these vulnerabilities would have mapped to techniques such as T1203 for Exploitation for Client Execution and T1059 for Command and Scripting Interpreter, emphasizing the need for comprehensive endpoint detection and response capabilities. Regular security assessments and vulnerability scanning of browser installations would have been essential to ensure complete remediation across all affected systems.