CVE-2016-5538 in VM VirtualBox
Summary
by MITRE
Unspecified vulnerability in the Oracle VM VirtualBox component before 5.0.28 and 5.1.x before 5.1.8 in Oracle Virtualization allows local users to affect confidentiality, integrity, and availability via vectors related to Core, a different vulnerability than CVE-2016-5501.
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Analysis
by VulDB Data Team • 09/27/2022
The vulnerability identified as CVE-2016-5538 represents a significant security flaw within Oracle VM VirtualBox virtualization software that affects versions prior to 5.0.28 and 5.1.8. This issue resides within the Core component of the virtualization platform and demonstrates the complex nature of virtual machine security where vulnerabilities can manifest across multiple system layers. The unspecified nature of the vulnerability type suggests it may involve memory corruption, privilege escalation, or other low-level system failures that could be exploited by local attackers with system-level access. The vulnerability's relationship to CVE-2016-5501 indicates that while both issues affect the same product family, they represent distinct attack vectors that require separate remediation approaches.
The technical flaw within Oracle VM VirtualBox Core component stems from inadequate input validation and memory management practices that could allow a local attacker to manipulate the virtualization environment's core processes. This type of vulnerability typically involves the exploitation of buffer overflows, use-after-free conditions, or other memory corruption issues that can be leveraged to execute arbitrary code with elevated privileges. The Core component serves as the foundation for virtual machine operations, making any compromise of this layer potentially devastating for the entire virtualization infrastructure. Attackers could exploit this weakness to gain unauthorized access to virtual machine resources, potentially leading to data exfiltration, system compromise, or service disruption.
The operational impact of CVE-2016-5538 extends across all three fundamental pillars of information security: confidentiality, integrity, and availability. Local attackers with access to a system running vulnerable VirtualBox versions could potentially read sensitive data from other virtual machines, modify system files and configurations, or cause denial of service conditions that would prevent legitimate virtualization operations. The vulnerability affects organizations that rely heavily on virtualization for their computing infrastructure, as it provides a pathway for attackers to compromise the virtual environment and potentially escalate their attacks to the host system or other connected virtual machines. This represents a critical risk in enterprise environments where virtualization is used extensively for server consolidation and application isolation.
Security professionals should immediately prioritize the patching of affected Oracle VM VirtualBox installations to mitigate the risks associated with CVE-2016-5538. The remediation process involves upgrading to versions 5.0.28 or 5.1.8, which contain the necessary fixes for the Core component vulnerabilities. Organizations should also implement additional monitoring and access controls to detect potential exploitation attempts, as the vulnerability requires local system access to exploit. The mitigation strategy should include comprehensive vulnerability scanning of all virtualization environments and regular security assessments to identify similar issues that may exist in other components of the virtualization stack. This vulnerability exemplifies the importance of maintaining up-to-date virtualization software and demonstrates how security flaws in core system components can have far-reaching consequences for entire IT infrastructures. The issue aligns with CWE categories related to memory safety and privilege escalation, and represents a significant concern for organizations following ATT&CK framework principles where local privilege escalation and defense evasion techniques are commonly employed by adversaries targeting virtualized environments.