CVE-2007-5368 in Solaris
Summary
by MITRE
Multiple unspecified vulnerabilities in labeld in Trusted Extensions in Sun Solaris 10 allow local users to cause a denial of service (multiple application hang) via unspecified vectors.
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Analysis
by VulDB Data Team • 06/02/2025
The vulnerability identified as CVE-2007-5368 affects the labeld component within Trusted Extensions of Sun Solaris 10 operating system. This component serves as a critical daemon responsible for managing security labels and enforcing mandatory access controls within the trusted computing environment. The labeld daemon operates with elevated privileges and maintains the core security infrastructure that protects sensitive data and systems through label-based access control mechanisms. As a fundamental element of the Trusted Extensions framework, labeld directly influences system security posture and access control decisions across all security domains.
The technical flaw manifests as unspecified vulnerabilities within the labeld daemon that enable local users to trigger multiple application hangs and system instability. These vulnerabilities likely stem from insufficient input validation, improper error handling, or resource management issues within the daemon's processing logic. Attackers exploiting these weaknesses can craft specific inputs or conditions that cause the labeld service to enter unstable states, resulting in application hangs that disrupt normal system operations and potentially compromise security enforcement mechanisms. The unspecified nature of the vulnerability vectors suggests multiple potential attack surfaces within the daemon's codebase, including buffer overflows, memory corruption issues, or improper state management during label processing operations.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as the labeld daemon's instability can severely compromise the entire Trusted Extensions security framework. When the daemon becomes unresponsive or enters a hung state, it prevents proper label management and access control enforcement, potentially allowing unauthorized access to sensitive resources or preventing legitimate users from accessing protected data. The cascading effects of such disruptions can lead to broader system instability, as other security services and applications that depend on labeld for proper operation may also fail or behave unpredictably. This vulnerability particularly undermines the integrity of the mandatory access control policies that Trusted Extensions provides, creating potential security gaps that adversaries could exploit to escalate privileges or bypass security controls.
Security professionals should implement immediate mitigations including applying available security patches from Oracle, which would address the underlying vulnerabilities in the labeld daemon implementation. System administrators should also consider restricting local user access to privileged system components and implementing monitoring solutions to detect abnormal daemon behavior or application hangs. The vulnerability aligns with CWE-119, which addresses weaknesses in memory management and buffer overflows, and represents a potential entry point for adversaries following ATT&CK technique T1068, which involves exploiting local privileges to gain system access. Additionally, organizations should conduct thorough security assessments of their Trusted Extensions implementations to identify any related vulnerabilities and ensure proper isolation of critical security services from potentially compromised local user environments.