CVE-2020-5972 in Virtual GPU Manager
Summary
by MITRE
NVIDIA Virtual GPU Manager contains a vulnerability in the vGPU plugin, in which local pointer variables are not initialized and may be freed later, which may lead to tampering or denial of service. This affects vGPU version 8.x (prior to 8.4), version 9.x (prior to 9.4) and version 10.x (prior to 10.3).
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Analysis
by VulDB Data Team • 10/28/2020
The vulnerability identified as CVE-2020-5972 resides within NVIDIA Virtual GPU Manager's vGPU plugin component, representing a critical security flaw that undermines the integrity and availability of virtualized GPU environments. This issue specifically targets the management of local pointer variables within the plugin's memory handling mechanisms, creating potential attack vectors that could be exploited by malicious actors. The vulnerability affects multiple major versions of NVIDIA's vGPU software, including versions 8.x prior to 8.4, 9.x prior to 9.4, and 10.x prior to 10.3, indicating a widespread impact across the vGPU product line that has persisted across several software releases.
The technical nature of this vulnerability stems from improper initialization of local pointer variables within the vGPU plugin's codebase, creating a scenario where these uninitialized pointers may be subsequently freed or dereferenced without proper validation. This memory management flaw falls under the category of improper initialization vulnerabilities, which are commonly classified as CWE-457 and can lead to unpredictable behavior when the program attempts to access or manipulate these uninitialized memory locations. The absence of proper pointer initialization creates opportunities for attackers to manipulate memory contents or trigger undefined behavior that could result in system instability or unauthorized access.
From an operational perspective, this vulnerability presents significant risks to organizations relying on NVIDIA vGPU technology for virtualized graphics processing environments. The potential for tampering through this flaw could allow attackers to manipulate the vGPU plugin's behavior, potentially gaining unauthorized access to GPU resources or compromising the integrity of virtualized graphics workloads. Additionally, the vulnerability's potential for denial of service attacks could disrupt critical applications that depend on virtual GPU functionality, leading to business continuity issues and operational downtime. The impact extends beyond simple system availability concerns as the uninitialized pointer behavior could potentially be leveraged for more sophisticated attacks targeting the underlying virtualization infrastructure.
The attack surface for this vulnerability is particularly concerning given the widespread adoption of NVIDIA vGPU technology in enterprise environments, cloud computing platforms, and virtual desktop infrastructures. Security professionals should consider this vulnerability in the context of broader attack frameworks such as those outlined in the MITRE ATT&CK matrix, where memory corruption vulnerabilities like this one could be categorized under techniques involving privilege escalation or denial of service. Organizations utilizing affected vGPU versions should prioritize immediate remediation through the application of NVIDIA's security patches, as the vulnerability exists across multiple major software versions and could potentially be exploited by threat actors with knowledge of memory corruption techniques.
Mitigation strategies should focus on implementing the latest security patches provided by NVIDIA, which address the specific pointer initialization issues within the vGPU plugin. System administrators should conduct thorough inventory assessments to identify all affected vGPU installations and ensure proper patch management procedures are in place to prevent similar vulnerabilities from emerging in future software releases. Additionally, monitoring systems should be configured to detect anomalous behavior patterns that could indicate exploitation attempts, while network segmentation and access controls should be reinforced to limit potential attack vectors. The vulnerability serves as a reminder of the critical importance of proper memory management practices in security-sensitive software components, particularly those handling virtualization and resource management functions within enterprise computing environments.