Learn about CVE-2021-1100 affecting NVIDIA Virtual GPU Software versions 8.x, 11.x, and 12.x. Understand the impact, technical details, and mitigation strategies for this vulnerability.
NVIDIA vGPU software versions 8.x, 11.x, and 12.x prior to specified versions are vulnerable due to improper validation of user-space buffers in the Virtual GPU Manager kernel mode driver. This flaw can lead to denial of service attacks.
Understanding CVE-2021-1100
This section provides insights into the vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2021-1100?
The vulnerability in NVIDIA Virtual GPU Software allows an attacker to exploit unvalidated user-space buffers in the Virtual GPU Manager kernel mode driver, potentially causing denial of service.
The Impact of CVE-2021-1100
The vulnerability poses a medium-severity threat with a CVSS base score of 6.2. Attackers with local access can exploit this flaw to disrupt services, impacting availability.
Technical Details of CVE-2021-1100
Below are the specific details regarding the vulnerability in NVIDIA Virtual GPU Software.
Vulnerability Description
The flaw arises from the lack of validation for a user-space buffer pointer in the Virtual GPU Manager kernel mode driver, enabling potential denial of service attacks.
Affected Systems and Versions
NVIDIA vGPU versions 8.x (prior 8.8), 11.x (prior 11.5), and 12.x (prior 12.3) are affected by this vulnerability.
Exploitation Mechanism
Attackers can leverage this vulnerability by crafting malicious inputs to trigger unvalidated buffer access, leading to service disruption.
Mitigation and Prevention
Protect your systems from CVE-2021-1100 with immediate and long-term security measures.
Immediate Steps to Take
Update NVIDIA Virtual GPU Software to the latest patched versions to mitigate the risk of exploitation.
Long-Term Security Practices
Implement regular security patches and updates, conduct security audits, and monitor for any unusual system behavior.
Patching and Updates
Stay informed about security advisories from NVIDIA and promptly apply patches to address known vulnerabilities.