CVE-2016-4136 in Flash Player
Summary
by MITRE
Unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier, as used in the Adobe Flash libraries in Microsoft Internet Explorer 10 and 11 and Microsoft Edge, has unknown impact and attack vectors, a different vulnerability than other CVEs listed in MS16-083.
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Analysis
by VulDB Data Team • 06/15/2024
Adobe Flash Player version 21.0.0.242 and earlier contains an unspecified vulnerability that affects Microsoft Internet Explorer 10 and 11 as well as Microsoft Edge through their embedded Adobe Flash libraries. This vulnerability represents a distinct security flaw separate from other issues catalogued in Microsoft Security Bulletin MS16-083, indicating that it operates through different attack vectors and potentially impacts different system components. The unspecified nature of the vulnerability means that the exact technical implementation flaw remains undisclosed in the initial CVE description, making it particularly challenging for security professionals to assess risk levels and develop targeted defenses. The vulnerability exists within the Adobe Flash Player runtime environment that Microsoft browsers utilize to execute flash content, creating a potential attack surface that could be exploited through malicious web content. This particular vulnerability demonstrates the inherent risks associated with browser plugin architectures where third-party components can introduce security weaknesses that extend beyond the core browser functionality. The impact of such vulnerabilities can range from remote code execution to privilege escalation depending on the underlying technical flaw. The attack vectors for this vulnerability likely involve malicious web pages that contain crafted flash content designed to exploit memory corruption issues within the Flash Player runtime. Such exploitation could potentially allow attackers to execute arbitrary code on vulnerable systems with the privileges of the user running the browser. The vulnerability classification aligns with common security frameworks where plugin-based components represent high-risk attack surfaces due to their complex codebases and frequent exploitation patterns. From a cybersecurity perspective, this vulnerability exemplifies why organizations should implement comprehensive patch management strategies that address both browser components and their embedded third-party libraries. The lack of specific details in the vulnerability description makes it particularly concerning for security teams who must assess risk without complete technical information about the flaw's nature and exploitation methods. This type of vulnerability also highlights the importance of maintaining up-to-date security intelligence and monitoring for related threats that may emerge from similar attack patterns in other security advisories. The vulnerability represents a classic case of how embedded third-party components can create persistent security risks that require continuous monitoring and remediation efforts.
The technical nature of this vulnerability suggests it likely involves memory management issues or buffer overflows within the Flash Player runtime engine that handles multimedia content execution. Such flaws typically occur when the player fails to properly validate input data or manage memory allocation during flash content processing, potentially allowing attackers to manipulate memory structures through specially crafted flash files. The fact that this vulnerability affects multiple Microsoft browsers through their shared Adobe Flash libraries indicates a widespread impact potential across different browser versions and operating systems. Security researchers often categorize such vulnerabilities under common weakness enumerations that include memory corruption issues, input validation failures, and privilege escalation paths. The vulnerability's presence in both older Internet Explorer versions and Microsoft Edge demonstrates the persistent nature of plugin-based security risks even as browser technologies evolve. Attackers may leverage this vulnerability through social engineering campaigns that deliver malicious web content designed to exploit the specific memory handling flaw in the Flash Player component. The operational impact extends beyond simple exploitation as it affects the fundamental security model of browsers that rely on third-party plugins for rich media content delivery. Organizations should consider implementing browser security policies that restrict flash content execution or disable it entirely to mitigate risks associated with such unspecified vulnerabilities. The vulnerability also underscores the need for continuous security assessments that evaluate not just core browser components but also their integrated third-party libraries and extensions.
Mitigation strategies for this unspecified vulnerability should focus on immediate patching of Adobe Flash Player components across all affected Microsoft browsers and operating systems. Security teams must prioritize updating Flash Player to versions that address the specific flaw without relying on temporary workarounds or browser configuration changes. The vulnerability's classification suggests that it may be part of a broader exploitation pattern that security researchers are actively monitoring, making timely patching essential to prevent widespread exploitation. Organizations should implement automated patch management systems that ensure all browser components and embedded libraries receive updates in a timely manner. The vulnerability also highlights the importance of network segmentation and web content filtering to prevent users from accessing potentially malicious flash content. Security monitoring should include detection of unusual flash player behavior or memory access patterns that may indicate exploitation attempts. The lack of specific technical details in the vulnerability description makes it crucial for organizations to maintain comprehensive threat intelligence feeds that can provide additional context about similar vulnerabilities or attack patterns. Regular security assessments should evaluate the entire browser ecosystem including plugins and extensions that may introduce similar security risks. The vulnerability serves as a reminder that browser-based attack surfaces remain complex and require ongoing vigilance through multiple layers of security controls including endpoint protection, network monitoring, and user education programs. Organizations should also consider transitioning away from legacy browser technologies that rely heavily on third-party plugins to reduce their overall attack surface and improve security posture.