CVE-2015-3910 in Chrome
Summary
by MITRE
Multiple unspecified vulnerabilities in Google V8 before 4.3.61.21, as used in Google Chrome before 43.0.2357.65, 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 • 05/19/2022
The vulnerability identified as CVE-2015-3910 represents a critical security flaw within Google V8 JavaScript engine, which serves as the foundational JavaScript runtime for Google Chrome and numerous other applications. This vulnerability affects V8 versions prior to 4.3.61.21 and impacts Chrome browsers running versions before 43.0.2357.65, creating a significant attack surface that could be exploited by malicious actors to compromise system integrity and availability. The unspecified nature of the vulnerabilities within this CVE designation suggests that multiple distinct weaknesses exist within the JavaScript engine's execution environment, potentially spanning various code paths and memory management functions.
The technical implementation of these vulnerabilities resides within the complex memory management and Just-In-Time compilation mechanisms that characterize modern JavaScript engines like V8. These engine components are responsible for dynamically allocating and deallocating memory during script execution, optimizing code performance, and managing object references. When flaws exist in these processes, attackers can manipulate memory layouts, corrupt data structures, or exploit race conditions that lead to unpredictable behavior. The vulnerability class typically falls under CWE-119, which addresses memory safety issues including buffer overflows, use-after-free conditions, and improper memory access patterns that can be leveraged to execute arbitrary code or cause system instability.
From an operational perspective, the impact of CVE-2015-3910 extends beyond simple denial of service scenarios to potentially enable more sophisticated attacks including remote code execution and privilege escalation. The vulnerability's potential for causing "other impact" suggests that attackers might be able to leverage these memory corruption issues to bypass security mitigations such as address space layout randomization, stack canaries, or other exploit prevention mechanisms. This makes the vulnerability particularly dangerous in environments where users might encounter malicious web content or where browsers are used as attack vectors in broader exploitation campaigns. The attack vectors are likely to involve crafted JavaScript code that triggers specific memory access patterns within the V8 engine, potentially through web pages, email attachments, or malicious software downloads that execute within the browser context.
The exploitation of these vulnerabilities aligns with ATT&CK techniques categorized under T1059.007 for JavaScript execution and T1203 for exploitation for execution. Security professionals should prioritize immediate patching of affected systems, as the vulnerabilities exist in widely used software components that are frequently targeted in real-world attacks. Organizations should implement network segmentation, browser hardening measures, and regular security assessments to reduce exposure. The remediation process requires updating Chrome browsers to version 43.0.2357.65 or later, which includes patches addressing the underlying memory management flaws in the V8 engine. Additionally, implementing content security policies, disabling unnecessary JavaScript features, and maintaining updated threat intelligence feeds can help protect against exploitation attempts targeting these specific memory corruption vulnerabilities.