CVE-2010-3540 in OpenSolaris
Summary
by MITRE
Unspecified vulnerability in Oracle Solaris 10 and OpenSolaris allows local users to affect availability, related to ZFS.
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Analysis
by VulDB Data Team • 01/20/2025
The vulnerability identified as CVE-2010-3540 represents a significant security flaw within Oracle Solaris 10 and OpenSolaris operating systems that specifically impacts the ZFS (Zettabyte File System) component. This unspecified vulnerability creates a potential threat vector that local attackers can exploit to compromise system availability, making it particularly concerning for enterprise environments where system reliability and uptime are critical. The ZFS file system, known for its advanced features including data integrity checking, snapshot capabilities, and built-in compression, becomes a potential point of system instability when this vulnerability is leveraged by malicious actors. The flaw exists within the core file system implementation and affects systems running these specific Solaris versions, potentially allowing attackers to cause system disruptions or complete service outages through targeted exploitation of the ZFS subsystem.
From a technical perspective, the vulnerability stems from weaknesses within the ZFS implementation that can be triggered by local users with existing system access. While the exact technical details remain unspecified in the CVE description, such vulnerabilities typically involve memory corruption issues, improper input validation, or race conditions within the file system's kernel modules. The ZFS subsystem handles complex operations including data management, storage pool operations, and file system transactions that could be exploited through carefully crafted inputs or sequences of operations. This type of vulnerability aligns with common software security issues that fall under CWE categories related to memory safety and input validation, where improper handling of system resources can lead to availability impacts. The local nature of the exploit means that attackers must already have some level of system access, but this privilege escalation or exploitation can still result in severe operational consequences.
The operational impact of CVE-2010-3540 extends beyond simple system crashes or restarts, as it specifically targets availability aspects of the operating system. Local users who successfully exploit this vulnerability could potentially cause complete system unavailability, leading to service disruptions that affect business operations, data accessibility, and overall system reliability. Organizations running Solaris 10 or OpenSolaris systems may experience unexpected downtime, data loss, or performance degradation when this vulnerability is exploited. The implications are particularly severe in enterprise environments where Solaris systems often serve as critical infrastructure components, including database servers, storage systems, and application platforms. The vulnerability could be leveraged to create denial-of-service conditions that require system restarts, data recovery procedures, or complete system reinstallation, resulting in significant operational costs and productivity losses.
Security mitigations for CVE-2010-3540 should focus on immediate patch management and system hardening measures. Organizations must prioritize applying Oracle's security patches and updates specifically designed to address this ZFS vulnerability, as these updates typically contain fixes for the underlying memory management or input validation issues. System administrators should also implement monitoring solutions to detect anomalous behavior within the ZFS subsystem that might indicate exploitation attempts. Network segmentation and access control measures can help limit potential attack surfaces by restricting local user access to critical systems. The vulnerability's classification as a local privilege escalation threat means that defense-in-depth strategies including user access controls, privilege separation, and regular security audits become critical. Additionally, implementing intrusion detection systems that monitor for unusual ZFS operations or system resource consumption patterns can help identify exploitation attempts before they cause significant damage. Organizations should also consider implementing automated patch management solutions to ensure timely deployment of security updates across all affected systems. The remediation process should include thorough testing of patches in non-production environments to avoid introducing new stability issues while ensuring that the vulnerability is properly addressed.