CVE-2021-34403 : Security Advisory and Response
Discover CVE-2021-34403, a vulnerability in nvmap ioctl in NVIDIA Linux distributions, allowing local users to escalate privileges and compromise system integrity.
NVIDIA Linux distributions are impacted by a vulnerability identified as CVE-2021-34403, allowing local users to exploit a use-after-free flaw in nvmap ioctl. This could result in code privilege escalation, confidentiality and integrity breaches, or denial of service.
Understanding CVE-2021-34403
This section provides insights into the vulnerability's impact and technical details.
What is CVE-2021-34403?
The CVE-2021-34403 vulnerability resides in nvmap ioctl within NVIDIA Linux distributions. It enables local users to trigger a use-after-free scenario, potentially leading to severe security repercussions.
The Impact of CVE-2021-34403
The vulnerability could be exploited by attackers with local accounts to achieve code privilege escalation, compromise data confidentiality and integrity, or cause service disruption.
Technical Details of CVE-2021-34403
Delve deeper into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability in nvmap ioctl allows malicious local users to exploit a use-after-free condition, posing risks of code privilege escalation, data loss, and denial of service.
Affected Systems and Versions
The affected product is the SHIELD TV from NVIDIA, specifically impacting all versions prior to SE 9.0.
Exploitation Mechanism
Local users can exploit the nvmap ioctl vulnerability to execute code with escalated privileges, potentially compromising system confidentiality and availability.
Mitigation and Prevention
Explore the measures to mitigate and prevent the CVE-2021-34403 vulnerability.
Immediate Steps to Take
Users are advised to apply security patches and updates promptly to address the vulnerability and enhance system security.
Long-Term Security Practices
Implement robust security practices, such as principle of least privilege, regular security audits, and employee awareness training, to fortify overall cybersecurity posture.
Patching and Updates
Stay informed about security bulletins from NVIDIA and promptly install patches and updates to safeguard systems from known vulnerabilities.