CVE-2016-3422 in Java SE
Summary
by MITRE
Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77 allows remote attackers to affect availability via vectors related to 2D.
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Analysis
by VulDB Data Team • 07/26/2022
The vulnerability identified as CVE-2016-3422 represents a significant security flaw within Oracle Java SE versions 6u113, 7u99, and 8u77 that specifically impacts the 2D graphics subsystem. This issue falls under the broader category of availability attacks, where malicious actors can exploit weaknesses in the Java runtime environment to disrupt system operations. The vulnerability's classification as unspecified indicates that Oracle did not provide detailed technical information about the exact nature of the flaw, though it was clearly tied to the 2D graphics rendering capabilities of the Java platform. Such vulnerabilities are particularly concerning in enterprise environments where Java applications often serve critical business functions and where availability of these systems directly impacts operational continuity.
The technical exploitation of this vulnerability occurs through specific vectors related to the 2D graphics functionality within Java's rendering pipeline. Attackers can leverage malformed graphics operations or manipulated 2D rendering parameters to trigger unexpected behavior in the Java Virtual Machine. This typically manifests as system instability, application crashes, or complete system unavailability. The 2D graphics subsystem in Java SE handles various rendering operations including image processing, vector graphics, and graphical user interface components, making it a prime target for denial-of-service attacks. The vulnerability's impact extends beyond simple application crashes to potentially causing complete system hangs or requiring system restarts to restore normal operations, which aligns with the availability compromise described in the CVE.
From an operational perspective, the implications of CVE-2016-3422 are substantial for organizations running affected Java versions. The remote exploit capability means that attackers do not need physical access or local privileges to cause disruption, making this vulnerability particularly dangerous in networked environments. Systems that rely heavily on Java applications for business-critical operations face significant risk of service interruption, potentially resulting in financial losses and operational downtime. The vulnerability affects multiple Java versions simultaneously, indicating a fundamental flaw in the graphics processing code that was present across several release lines, suggesting a widespread impact across different organizational infrastructures. Organizations using older Java versions or those that have not applied the relevant security patches face elevated risk levels.
The mitigation strategies for this vulnerability primarily involve applying the official security patches released by Oracle as part of their regular update cycle. System administrators should prioritize updating to the latest Java SE versions that contain fixes for this specific issue. Additionally, implementing network segmentation and access controls can help limit the potential impact of such attacks by restricting unauthorized access to systems running vulnerable Java versions. Organizations should also consider disabling unnecessary 2D graphics functionality in applications where possible, though this approach may not be feasible for all use cases. The vulnerability aligns with ATT&CK technique T1499.004 which focuses on network denial of service attacks, and may relate to CWE-119 which addresses memory corruption issues that could potentially affect graphics rendering subsystems. Regular security assessments and vulnerability scanning should be conducted to identify systems running vulnerable Java versions and ensure timely remediation to prevent exploitation.