CVE-2016-2818 in Firefox
Summary
by MITRE
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
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Analysis
by VulDB Data Team • 10/23/2024
The vulnerability identified as CVE-2016-2818 represents a critical security flaw affecting Mozilla Firefox versions prior to 47.0 and Firefox ESR 45.x versions prior to 45.2. This issue resides within the browser engine's core functionality, specifically targeting components responsible for processing web content and managing memory allocation. The affected Firefox versions contain multiple unspecified vulnerabilities that collectively create a significant attack surface for malicious actors seeking to exploit memory corruption flaws through remote code execution or denial of service conditions.
The technical nature of this vulnerability stems from memory management flaws within Firefox's rendering engine, which processes HTML, CSS, and JavaScript content. These unspecified vectors likely involve improper handling of memory allocation during page rendering or JavaScript execution, potentially leading to buffer overflows, use-after-free conditions, or other memory corruption scenarios. The vulnerability's classification as affecting "multiple unspecified vulnerabilities" suggests a complex attack surface where various code paths within the browser engine could be exploited, making comprehensive detection and remediation challenging for security professionals.
The operational impact of CVE-2016-2818 extends beyond simple application crashes, as the vulnerability presents a potential pathway for remote code execution. Attackers could leverage these memory corruption flaws to inject malicious code into the victim's browser environment, potentially leading to full system compromise. The denial of service aspect creates additional operational concerns, as legitimate users could experience unexpected browser crashes, rendering the application unusable and disrupting productivity. Organizations relying on Firefox for business operations would face significant risks including data exposure, service interruption, and potential regulatory compliance violations.
Security professionals should prioritize immediate patch deployment for all affected Firefox versions, as this vulnerability represents a high-severity risk requiring urgent attention. The mitigation strategy should include comprehensive browser updates across all organizational endpoints, followed by network monitoring to detect potential exploitation attempts. Additional protective measures such as implementing web application firewalls, restricting browser functionality through security policies, and conducting regular vulnerability assessments can help reduce exposure. This vulnerability aligns with CWE-122 (Heap Overflow) and CWE-125 (Out-of-bounds Read) categories, and represents a typical attack pattern categorized under ATT&CK technique T1059.007 (Command and Scripting Interpreter: JavaScript) when exploited for remote code execution. Organizations should also consider implementing browser isolation technologies and maintaining robust incident response procedures to address potential exploitation attempts.