CVE-2012-1508 in View
Summary
by MITRE
The XPDM display driver in VMware ESXi 4.0, 4.1, and 5.0; VMware ESX 4.0 and 4.1; and VMware View before 4.6.1 allows guest OS users to gain guest OS privileges or cause a denial of service (NULL pointer dereference) via unspecified vectors.
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Analysis
by VulDB Data Team • 03/22/2021
The vulnerability identified as CVE-2012-1508 represents a critical security flaw within the XPDM display driver component of VMware's virtualization platform. This vulnerability affects multiple versions of VMware ESXi and ESX hypervisors, specifically targeting versions 4.0, 4.1, and 5.0 for ESXi, along with ESX versions 4.0 and 4.1, while also impacting VMware View before version 4.6.1. The XPDM display driver serves as a crucial component responsible for managing graphics rendering and display functionality within virtual machine environments, making it a prime target for exploitation by malicious actors seeking to escalate privileges or disrupt system operations.
The technical nature of this vulnerability stems from a NULL pointer dereference condition that occurs within the XPDM display driver implementation. This flaw allows malicious guest operating system users to manipulate the driver's behavior through unspecified vectors that typically involve crafted graphics operations or display-related commands. When the driver encounters a NULL pointer reference during normal operation, it fails to properly validate input parameters or handle error conditions, leading to a system crash or potential privilege escalation. From a cybersecurity perspective, this vulnerability directly maps to CWE-476, which specifically addresses NULL pointer dereference conditions that can lead to system instability and security breaches. The underlying mechanism involves the driver's failure to properly sanitize or validate user-supplied data during graphics processing operations, creating a pathway for attackers to execute arbitrary code or force system termination.
The operational impact of CVE-2012-1508 extends beyond simple denial of service scenarios, as it provides attackers with potential privilege escalation capabilities within the guest operating system environment. In a multi-tenant virtualization environment, this vulnerability could allow a malicious user running within one virtual machine to potentially compromise the integrity of other virtual machines or the underlying hypervisor itself. The consequences include unauthorized access to sensitive data, system instability leading to service disruption, and potential complete system compromise. Organizations utilizing VMware virtualization platforms face significant risk exposure, particularly in environments where multiple users share the same infrastructure, as a single compromised guest could potentially affect the entire virtualization cluster. The vulnerability's presence in multiple versions of VMware's products indicates a widespread exposure that requires immediate attention from security administrators and system operators.
Mitigation strategies for this vulnerability should encompass both immediate patching and operational security measures. VMware released security updates specifically addressing this issue in versions 4.6.1 and later of their products, making patch management the primary recommended approach. System administrators should prioritize updating all affected VMware installations to the latest security patches while ensuring comprehensive testing in development environments before production deployment. Network segmentation and access controls should be implemented to limit guest user privileges and reduce the potential attack surface. From an ATT&CK framework perspective, this vulnerability aligns with techniques involving privilege escalation and denial of service, making it essential for security teams to monitor for suspicious graphics-related processes and implement appropriate monitoring controls. Additionally, organizations should conduct regular vulnerability assessments to identify and remediate similar issues within their virtualization infrastructure, as the XPDM driver represents just one potential vector for exploitation in complex virtualized environments.