CVE-2003-1061 in Solaris
Summary
by MITRE
Race condition in Solaris 2.6 through 9 allows local users to cause a denial of service (kernel panic), as demonstrated via the namefs function, pipe, and certain STREAMS routines.
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Analysis
by VulDB Data Team • 08/27/2019
The vulnerability described in CVE-2003-1061 represents a critical race condition flaw affecting Solaris operating systems from version 2.6 through 9. This issue stems from improper synchronization mechanisms within the kernel's handling of file system operations, specifically involving the namefs function which manages naming services for file systems. The race condition occurs when multiple threads or processes attempt to access shared kernel resources simultaneously without adequate locking mechanisms, creating a temporal window where the system's internal state becomes inconsistent.
The technical exploitation of this vulnerability leverages the interaction between namefs functionality, pipe operations, and STREAMS routines within the Solaris kernel architecture. When local users trigger concurrent access patterns to these kernel subsystems, the race condition manifests as unpredictable behavior leading to kernel panics and system crashes. The underlying flaw resides in the kernel's failure to properly implement atomic operations when managing shared resources across different kernel components, particularly during the creation and manipulation of file system names and pipe communications.
From an operational impact perspective, this vulnerability poses significant risks to system availability and stability within Solaris environments. The denial of service condition it induces can result in complete system crashes requiring manual reboot procedures, potentially disrupting critical services and applications relying on the affected Solaris systems. Network administrators and system operators face the challenge of maintaining uptime while managing systems vulnerable to this race condition, as the timing and specific conditions required for exploitation make detection and prevention particularly difficult.
The vulnerability aligns with CWE-362, which categorizes race conditions as a fundamental security weakness in concurrent programming. This weakness enables attackers to exploit temporal gaps in program execution where synchronization mechanisms fail, leading to unpredictable system behavior. From an ATT&CK framework perspective, this vulnerability maps to privilege escalation and denial of service tactics, as local users can leverage the race condition to disrupt system operations without requiring elevated privileges. The exploitation technique involves careful timing of system calls to maximize the probability of encountering the race condition window, making it a particularly insidious threat to system integrity.
Mitigation strategies for CVE-2003-1061 require immediate implementation of vendor-provided patches and updates from Sun Microsystems, as the vulnerability represents an inherent flaw in the kernel's synchronization mechanisms. System administrators should implement monitoring solutions to detect anomalous access patterns that might indicate attempted exploitation, while also ensuring that all systems are updated with the latest security patches. The recommended approach includes applying the specific kernel patches addressing the race condition in namefs, pipe, and STREAMS routines, along with implementing proper access controls to limit local user privileges where possible. Additionally, organizations should consider implementing intrusion detection systems capable of identifying suspicious kernel access patterns that could indicate exploitation attempts.