CVE-2021-1064: High Vulnerability in NVIDIA vGPU Manager

NVIDIA vGPU manager contains a vulnerability in the vGPU plugin, where it obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer. This may lead to information disclosure or denial of service. The affected versions include vGPU version 8.x (prior to 8.6) and version 11.0 (prior to 11.3). The vulnerability has a CVSS score of 7.1, classifying it as high severity.

Risk to organizations includes the potential exposure of sensitive information and service outages, which can significantly impact operational integrity. Given the nature of the vulnerability and its implications, organizations should prioritize patching immediately.

Currently, there are no known public exploits associated with this vulnerability, but the existence of the flaw itself poses a significant risk. Organizations are advised to monitor their systems and apply the necessary updates as soon as they become available.

The vulnerability was published on January 8, 2021, and has been modified since its initial disclosure, indicating ongoing developments in its assessment and remediation strategies.

Vulnerability Details

The NVIDIA vGPU manager vulnerability primarily revolves around improper handling of values from untrusted sources. This can allow attackers to manipulate memory, leading to information disclosure or denial of service. The official CVSS score assigned is 7.1, indicating a high severity level due to the significant confidentiality and availability impacts.

The affected product is the NVIDIA vGPU manager. The vulnerability is classified under CWE-476, which refers to NULL Pointer Dereference. Organizations using versions 8.x (prior to 8.6) and version 11.0 (prior to 11.3) of the vGPU manager should take immediate action to mitigate the risk.

Technical Analysis

The root cause of this vulnerability lies in the incorrect handling of pointers derived from untrusted sources, which can lead to dereferencing invalid memory addresses. The attack vector is local, and attackers need low privileges to exploit the vulnerability, indicating that any user with access can potentially trigger the flaw.

The attack complexity is low, requiring no user interaction, which makes it easier for an attacker to leverage this vulnerability. The potential impacts include high confidentiality loss and high availability loss, which can severely disrupt services.

Risk & Impact Analysis

Organizations that deploy NVIDIA vGPU manager with the affected versions face significant risks. The potential for unauthorized access to sensitive data and service disruptions poses a critical threat to business operations. The vulnerability's high CVSS score reflects the urgency with which organizations must act.

The blast radius for this vulnerability is considerable, as it affects any organization utilizing the vulnerable versions of the vGPU manager. Thus, the urgency for remediation should be prioritized in accordance with high severity classification.

Affected Versions

This vulnerability affects NVIDIA vGPU manager versions 8.x (prior to 8.6) and version 11.0 (prior to 11.3). Organizations using these versions should implement updates as soon as possible to mitigate risks.

Mitigation & Remediation

Organizations should prioritize patching affected versions of NVIDIA vGPU manager. For remediation, upgrade to the latest available version that addresses this vulnerability. If immediate patching is not feasible, implement configuration hardening measures and network controls to limit exposure until patches can be applied.

Detection Guidance

Monitoring logs for unusual behavior and indicators of compromise can help detect attempts to exploit this vulnerability. Look for any discrepancies in memory management and access attempts to the vGPU plugin.

AppSecure Threat Intelligence Insight

The long-term significance of this vulnerability highlights the importance of secure memory management practices in software development. It represents a common pattern of flaws that can lead to severe impacts if left unaddressed. Security teams should focus on implementing robust validation mechanisms to prevent similar vulnerabilities.

For further insights on how to enhance security measures, organizations might consider exploring topics like penetration testing methodology and vulnerability management program design to address existing weaknesses.

For ongoing protection, organizations are encouraged to implement continuous security testing practices to identify vulnerabilities proactively.