CVE-2017-3267 in Outside In Technology
Summary
by MITRE
Vulnerability in the Oracle Outside In Technology component of Oracle Fusion Middleware (subcomponent: Outside In Filters). Supported versions that are affected are 8.5.2 and 8.5.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Outside In Technology. Note: Outside In Technology is a suite of software development kits (SDKs). The protocol and CVSS score depend on the software that uses the Outside In Technology code. The CVSS score assumes that the software passes data received over a network directly to Outside In Technology code, but if data is not received over a network the CVSS score may be lower. CVSS v3.0 Base Score 7.5 (Availability impacts).
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Analysis
by VulDB Data Team • 05/15/2026
The vulnerability identified as CVE-2017-3267 resides within Oracle Outside In Technology, a critical component of Oracle Fusion Middleware that functions as a comprehensive suite of software development kits enabling applications to process various document formats. This specific flaw manifests in the Outside In Filters subcomponent, which serves as the core processing engine for handling different file types and formats within the middleware ecosystem. The vulnerability affects Oracle Fusion Middleware versions 8.5.2 and 8.5.3, representing a significant security gap that could be exploited by malicious actors without requiring authentication credentials, making it particularly dangerous in networked environments where unauthenticated access is possible.
This vulnerability represents a serious availability threat classified as a denial of service condition, where an unauthenticated attacker can leverage network access via HTTP protocols to compromise the targeted system. The technical flaw stems from inadequate input validation within the Outside In Technology processing pipeline, specifically in how the system handles malformed or specially crafted data streams that are passed directly to the vulnerable code modules. The vulnerability's exploitability is considered easily accessible, meaning that an attacker requires minimal technical expertise to successfully launch an attack, and the impact can result in complete system disruption through hanging or repeated crashes that effectively render the service unavailable to legitimate users.
The operational impact of this vulnerability extends beyond simple service interruption, as it can lead to complete system downtime that affects business operations and potentially causes cascading failures within larger enterprise environments that depend on Oracle Fusion Middleware for document processing and content management functions. The CVSS v3.0 base score of 7.5 reflects the severity of the availability impact, with the score being calculated under the assumption that network data is directly passed to the vulnerable Outside In Technology code without proper sanitization or validation. However, the actual risk assessment may vary depending on the specific implementation and whether network data is properly filtered before reaching the vulnerable components, which creates a potential attack surface that organizations must carefully evaluate and secure.
Organizations should implement immediate mitigations including applying the relevant Oracle patches and updates that address this vulnerability, restricting network access to the affected systems through firewalls and access controls, and implementing network monitoring to detect potential exploitation attempts. The vulnerability aligns with CWE-121, which addresses buffer overflow conditions, and represents a typical example of how insecure input handling can create denial of service vulnerabilities in software development kits. From an ATT&CK framework perspective, this vulnerability maps to the T1499.004 technique for network denial of service, where attackers leverage software flaws to disrupt availability of network services. Additionally, organizations should consider implementing application-level firewalls and input validation controls to prevent malformed data from reaching the vulnerable Outside In Technology components, while also conducting regular security assessments to identify similar vulnerabilities in other middleware components that might be similarly affected by improper input handling practices.