CVE-2011-0820 in Solaris
Summary
by MITRE
Unspecified vulnerability in Oracle Solaris 10, and 11 Express allows remote attackers to affect availability via unknown vectors related to Kernel.
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Analysis
by VulDB Data Team • 01/18/2025
The vulnerability identified as CVE-2011-0820 represents a critical security flaw within the kernel component of Oracle Solaris operating systems, specifically affecting versions 10 and 11 Express. This unspecified weakness exists within the kernel subsystem which serves as the core foundation of the operating system's security architecture and system management functions. The vulnerability's classification as a kernel-level issue indicates its profound impact on system stability and availability, as the kernel manages essential system resources and controls access to hardware components.
The technical nature of this vulnerability stems from an unspecified weakness within the kernel's implementation that could potentially be exploited by remote attackers without requiring authentication or elevated privileges. Kernel vulnerabilities of this nature typically arise from improper input validation, memory management errors, or race conditions that occur during system operation. According to CWE taxonomy, this vulnerability would likely fall under categories related to kernel security flaws, potentially mapping to CWE-119 for memory corruption issues or CWE-362 for race conditions that could lead to privilege escalation or system instability.
The operational impact of this vulnerability extends beyond simple availability concerns to encompass potential system compromise and denial of service conditions. Remote attackers could exploit this weakness to disrupt system operations, cause kernel panics, or potentially gain unauthorized access to system resources. The unspecified nature of the vector suggests that multiple attack paths may exist, making the vulnerability particularly dangerous as defenders cannot easily predict or prepare for all possible exploitation methods. This characteristic aligns with ATT&CK framework concepts under T1499 for endpoint denial of service and T1068 for local privilege escalation techniques.
Organizations running affected Solaris versions face significant operational risks including system downtime, data integrity concerns, and potential compromise of sensitive system functions. The vulnerability's location within the kernel means that successful exploitation could result in complete system failure or unauthorized access to privileged system functions. Security teams must consider implementing comprehensive monitoring solutions to detect anomalous kernel behavior and establish robust incident response procedures. The lack of specific vector information makes traditional signature-based detection methods ineffective, requiring more sophisticated behavioral analysis and anomaly detection capabilities.
Mitigation strategies should prioritize immediate patch deployment from Oracle as the primary defense mechanism, given the critical nature of kernel-level vulnerabilities. System administrators should implement network segmentation to limit potential attack surfaces and consider disabling unnecessary kernel modules or services that could provide additional attack vectors. Regular security assessments and vulnerability scanning should be conducted to identify any related weaknesses that could compound the impact of this vulnerability. Additionally, maintaining detailed system baseline configurations and implementing proper system hardening practices can help reduce the overall attack surface and improve detection capabilities for potential exploitation attempts.