CVE-2011-2259 in Solaris
Summary
by MITRE
Unspecified vulnerability in Oracle Solaris 8, 9, 10, and 11 Express allows local users to affect availability, related to UFS.
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Analysis
by VulDB Data Team • 01/12/2025
The vulnerability identified as CVE-2011-2259 represents a significant security flaw within Oracle Solaris operating systems across multiple versions including Solaris 8, 9, 10, and 11 Express. This issue resides within the Universal File System implementation and specifically affects local users who can exploit this weakness to compromise system availability. The unspecified nature of the vulnerability description indicates that the exact technical mechanism remains undisclosed, though the impact clearly demonstrates a potential for denial of service conditions that could severely disrupt system operations.
The technical flaw manifests within the UFS file system implementation where local attackers can potentially manipulate system resources to cause availability degradation. This type of vulnerability falls under the category of availability attacks as defined by the Common Weakness Enumeration framework, specifically aligning with CWE-400 which encompasses weaknesses related to resource exhaustion and system availability compromise. The local nature of the attack means that an adversary must already have access to the system to exploit this vulnerability, typically requiring either legitimate user credentials or some form of initial compromise to gain a foothold within the environment.
From an operational impact perspective, this vulnerability poses a substantial risk to system stability and reliability within Solaris environments. When exploited, local users can potentially cause system crashes, process termination, or resource exhaustion that affects the overall availability of critical services. The implications extend beyond simple service disruption as system administrators may face challenges in maintaining consistent uptime for mission-critical applications that depend on stable file system operations. This vulnerability particularly concerns enterprise environments where Solaris systems host important business applications and data storage services.
Mitigation strategies for CVE-2011-2259 should prioritize immediate patching of affected Solaris systems through Oracle's official security updates and advisories. System administrators must ensure comprehensive testing of patches in non-production environments before deployment to avoid potential service disruptions. Additionally, implementing network segmentation and access controls can help limit potential exploitation by reducing the attack surface available to local users. Monitoring systems should be configured to detect anomalous file system behavior or resource consumption patterns that might indicate exploitation attempts. The vulnerability's classification under the ATT&CK framework would place it within the Privilege Escalation and Defense Evasion tactics, making it particularly concerning for organizations that rely on Solaris systems for enterprise-level operations. Regular vulnerability assessments and security audits should be conducted to identify similar weaknesses in file system implementations and ensure comprehensive protection against both known and emerging threats.