CVE-2016-1659 in Chrome
Summary
by MITRE
Multiple unspecified vulnerabilities in Google Chrome before 50.0.2661.75 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 • 07/25/2022
The vulnerability identified as CVE-2016-1659 represents a collection of unspecified security flaws within Google Chrome browser versions prior to 50.0.2661.75. This vulnerability class demonstrates the complexity of modern browser security where multiple attack surfaces can be exploited simultaneously. The affected versions of Chrome contained several undisclosed weaknesses that could potentially be leveraged by malicious actors to compromise system availability or execute unauthorized actions. These vulnerabilities typically reside in the browser's core rendering engines, memory management systems, or network handling components that form the foundation of web browser security. The unspecified nature of these vulnerabilities suggests that they may have been discovered through different attack vectors or may have manifested in various ways depending on the execution context and target environment. Such broad categories of vulnerabilities often indicate deeper architectural issues within the browser's codebase that require comprehensive security reviews and patches.
The technical exploitation of these vulnerabilities likely involved manipulation of browser internals through crafted web content or network traffic that could trigger memory corruption, resource exhaustion, or privilege escalation conditions. Attackers could potentially leverage these weaknesses to cause browser crashes, system instability, or in more severe cases, achieve arbitrary code execution within the browser sandbox. The denial of service aspect typically manifests through resource exhaustion attacks that consume memory, CPU cycles, or other system resources until the browser becomes unresponsive or crashes entirely. These vulnerabilities may have been related to improper input validation, buffer overflows, or memory management errors that occur when processing specific web content or network protocols. The potential for additional impacts beyond simple denial of service suggests that some variants might have allowed for privilege escalation or information disclosure attacks that could compromise user data or system integrity.
The operational impact of CVE-2016-1659 extends far beyond individual user experiences to encompass enterprise security postures and organizational risk management. Organizations running affected Chrome versions faced potential exposure to targeted attacks that could exploit these vulnerabilities to gain unauthorized access to sensitive information or disrupt business operations. The broad nature of these vulnerabilities meant that traditional security controls might not have been sufficient to prevent exploitation, as they could be triggered through various attack vectors including malicious websites, email attachments, or compromised web services. Security teams needed to prioritize immediate patch deployment across their networks while simultaneously monitoring for potential exploitation attempts. The vulnerability's presence in widely used browser software created a significant risk surface that could be exploited by both sophisticated nation-state actors and less sophisticated threat groups seeking to leverage the high user adoption rate of Chrome for mass exploitation campaigns. This type of vulnerability often requires coordinated response efforts between software vendors and security organizations to ensure comprehensive threat intelligence sharing and remediation strategies.
Mitigation strategies for CVE-2016-1659 centered primarily on immediate software updates and browser version management as recommended by the CWE standard for addressing memory safety issues. Organizations should have implemented mandatory update policies to ensure all Chrome installations were upgraded to version 50.0.2661.75 or later where these vulnerabilities were addressed. Browser security hardening measures including sandboxing configurations, content security policies, and restricted browsing environments provided additional defense layers. Network security controls such as web application firewalls, proxy configurations, and intrusion detection systems could help detect and prevent exploitation attempts targeting these vulnerabilities. The ATT&CK framework categorizes such vulnerabilities under the 'Execution' and 'Persistence' phases of attack chains, where initial access through browser exploitation could lead to further system compromise. Regular security assessments and penetration testing should have been conducted to identify potential exploitation vectors and validate the effectiveness of implemented controls. Security awareness training for users regarding safe browsing practices and recognition of suspicious web content became critical in reducing the risk of successful exploitation attempts. The vulnerability highlighted the importance of continuous security monitoring and rapid response capabilities to address emerging threats in complex software environments.