CVE-2007-4758 in Ucosminexus Application Server Standard
Summary
by MITRE
Multiple buffer overflows in the image-processing APIs in Cosminexus Developer s Kit for Java in Cosminexus 4 through 7 allow remote attackers to cause a denial of service or execute arbitrary code via unspecified vectors.
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Analysis
by VulDB Data Team • 10/31/2017
The vulnerability identified as CVE-2007-4758 represents a critical security flaw within the Cosminexus Developer s Kit for Java version 4 through 7, specifically affecting image-processing application programming interfaces. This vulnerability manifests as multiple buffer overflows that occur during the processing of image data, creating a significant attack surface for malicious actors. The affected software components are part of a broader development framework that enables developers to integrate advanced image processing capabilities into their Java applications, making this vulnerability particularly concerning given the widespread use of Java-based systems across enterprise environments.
The technical implementation of this vulnerability stems from inadequate input validation and memory management within the image-processing APIs. Buffer overflows occur when the software attempts to write data beyond the allocated memory boundaries, typically triggered by malformed or oversized image files that exceed the expected buffer sizes. These overflows can be exploited through various attack vectors involving specially crafted image data that manipulates the memory layout of the application. The vulnerability architecture aligns with CWE-121, which describes stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios that commonly occur in image processing libraries due to improper memory allocation handling during image decoding operations.
The operational impact of this vulnerability extends beyond simple denial of service conditions to encompass potential arbitrary code execution capabilities. Attackers can leverage these buffer overflows to manipulate program execution flow, potentially leading to complete system compromise. The remote exploitability means that attackers do not require local access to the target system, making the vulnerability particularly dangerous in networked environments where image processing services are exposed to untrusted inputs. This threat model aligns with ATT&CK technique T1203, which covers exploitation for arbitrary code execution through memory corruption vulnerabilities, and T1499, which addresses denial of service through resource exhaustion or system compromise.
Organizations utilizing Cosminexus Developer s Kit for Java in versions 4 through 7 face substantial risk exposure from this vulnerability, particularly those operating image processing services that accept user-uploaded content or process external image data. The vulnerability affects not only direct application functionality but also broader system security posture, as successful exploitation could provide attackers with elevated privileges and persistent access to affected systems. The remote attack surface increases the attack surface complexity significantly, as the vulnerability can be exploited through web applications, file processing services, or any interface that utilizes the affected image-processing APIs.
Mitigation strategies for this vulnerability require immediate attention and comprehensive implementation across affected systems. The primary remediation approach involves upgrading to a patched version of the Cosminexus Developer s Kit for Java, as the vendor should have released security updates addressing these buffer overflow conditions. Additionally, implementing input validation controls at application boundaries can provide defense-in-depth measures, including image file size restrictions, format validation, and memory allocation limits. Network segmentation and access controls should be strengthened to limit exposure of image processing services to untrusted networks. Security monitoring should be enhanced to detect anomalous image processing activities that might indicate exploitation attempts, while regular security assessments should verify the effectiveness of implemented controls. The vulnerability also underscores the importance of secure coding practices and thorough input validation in image processing libraries, aligning with industry standards that emphasize secure memory management and robust error handling in multimedia processing components.