CVE-2016-8882 in Jasper
Summary
by MITRE
The jpc_dec_tilefini function in libjasper/jpc/jpc_dec.c in JasPer before 1.900.8 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted file.
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Analysis
by VulDB Data Team • 05/13/2026
The vulnerability identified as CVE-2016-8882 represents a critical denial of service flaw within the JasPer image processing library, specifically affecting versions prior to 1.900.8. This issue resides in the jpc_dec_tilefini function located within the libjasper/jpc/jpc_dec.c source file, demonstrating how seemingly minor implementation gaps can lead to significant system stability concerns. The vulnerability manifests when the library processes maliciously crafted image files, creating a scenario where remote attackers can exploit the flaw to crash applications utilizing JasPer for image decompression tasks.
The technical nature of this vulnerability stems from a NULL pointer dereference condition that occurs during the tile finalization phase of JPEG 2000 decoding operations. When a specially crafted file triggers the jpc_dec_tilefini function, the code fails to properly validate pointer references before attempting to access memory locations, resulting in an immediate system crash. This type of flaw falls under CWE-476 which specifically addresses NULL pointer dereference conditions, making it a well-documented pattern of software vulnerability that has been consistently observed across various applications and libraries. The vulnerability operates at the intersection of memory management and input validation, where improper error handling during file parsing leads to system instability.
From an operational perspective, this vulnerability poses significant risks to systems that rely on JasPer for image processing, particularly those handling untrusted input from external sources. Applications utilizing this library for image decompression, including web servers, image processing platforms, and document management systems, become susceptible to denial of service attacks. The remote exploitation capability means that attackers can trigger the vulnerability without requiring local access, making it particularly dangerous in networked environments. The impact extends beyond simple service disruption, as repeated exploitation can lead to sustained availability issues, potentially affecting business operations and user experience across multiple systems.
The exploitation of CVE-2016-8882 aligns with ATT&CK technique T1499.004 which focuses on network denial of service attacks, demonstrating how memory corruption vulnerabilities can be leveraged to create persistent availability issues. Organizations deploying systems that process image files from untrusted sources face the highest risk, including content management systems, web applications, and digital asset management platforms. The vulnerability's classification as a remote denial of service means that protection measures must consider network-level defenses, application-level input validation, and proper error handling mechanisms to prevent exploitation.
Mitigation strategies for this vulnerability require immediate patching of affected JasPer library versions to 1.900.8 or later, which contains the necessary code modifications to prevent NULL pointer dereference conditions. System administrators should implement comprehensive input validation measures, including file format verification and size limiting for image processing applications. Network segmentation and access controls can help reduce the attack surface by limiting exposure to potentially malicious image files. Additionally, implementing application-level monitoring and intrusion detection systems can help identify exploitation attempts and provide early warning of potential attacks. Organizations should also consider implementing sandboxing techniques for image processing operations to contain potential impacts and ensure that even if exploitation occurs, it does not compromise the broader system infrastructure. The fix addresses the core memory management issue by ensuring proper pointer validation before memory access operations, aligning with industry best practices for secure coding and input validation as recommended by various cybersecurity frameworks and standards.