CVE-2014-9810 in ImageMagick
Summary
by MITRE
The dpx file handler in ImageMagick allows remote attackers to cause a denial of service (segmentation fault and application crash) via a malformed dpx file.
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Analysis
by VulDB Data Team • 10/31/2024
The vulnerability identified as CVE-2014-9810 represents a critical denial of service flaw within ImageMagick's dpx file handling component. This issue affects the widely used image processing library that is integrated into numerous applications across various operating systems and platforms. The vulnerability specifically targets the Digital Picture eXchange (DPX) file format handler, which is commonly used in professional film and video editing environments where high-quality image data is essential for visual effects and post-production workflows. The flaw manifests when ImageMagick processes malformed dpx files, causing the application to crash with a segmentation fault that results in complete application termination and service unavailability.
The technical root cause of this vulnerability lies in insufficient input validation and error handling within the dpx file parser implementation. When ImageMagick encounters a malformed dpx file containing malformed headers, incorrect data structures, or corrupted metadata, the parsing routine fails to properly validate the input data before attempting to process it. This lack of proper boundary checking and data sanitization allows malicious actors to craft specially crafted dpx files that trigger memory access violations during the parsing process. The vulnerability is classified under CWE-125 as an out-of-bounds read error, where the application attempts to access memory locations beyond the allocated buffer boundaries, leading to the segmentation fault and subsequent application crash.
The operational impact of this vulnerability extends beyond simple service disruption as it can be exploited in various attack scenarios including web application exploitation, email attachment processing, and automated file handling systems. Attackers can leverage this vulnerability to perform denial of service attacks against systems that rely on ImageMagick for image processing, potentially affecting content management systems, web applications, digital asset management platforms, and media processing pipelines. The vulnerability is particularly concerning in environments where automated processing of user-uploaded content occurs, as it could allow attackers to systematically crash image processing services, leading to complete service outages and potential business disruption. This attack vector aligns with ATT&CK technique T1499.004 for network denial of service, where adversaries target application-level services to disrupt legitimate use.
Mitigation strategies for CVE-2014-9810 should focus on immediate patching of affected ImageMagick installations, as the vulnerability has been addressed through version updates that include proper input validation and error handling mechanisms. Organizations should implement strict file validation procedures that include content type verification, size limitations, and pre-processing checks before allowing any dpx files to be processed by ImageMagick. Network-based defenses can include implementing file type filtering at ingress points, deploying intrusion detection systems that monitor for abnormal file processing patterns, and establishing robust application sandboxing to limit the impact of potential exploitation attempts. Additionally, organizations should consider implementing automated monitoring and alerting for service availability issues that could indicate exploitation attempts, while maintaining comprehensive logging of file processing activities to enable forensic analysis if attacks occur. The vulnerability demonstrates the critical importance of input validation in image processing libraries and underscores the need for proper security testing of file format handlers in widely deployed software components.