CVE-2021-33098 : Security Advisory and Response
Learn about CVE-2021-33098, a vulnerability in Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 that could enable denial of service. Find out the impact, technical details, and mitigation steps.
This article provides detailed information about CVE-2021-33098, a vulnerability in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 that could potentially enable denial of service via local access.
Understanding CVE-2021-33098
CVE-2021-33098 is related to improper input validation in the Intel(R) Ethernet ixgbe driver for Linux, affecting versions before 3.17.3.
What is CVE-2021-33098?
The vulnerability in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 allows an authenticated user to potentially enable denial of service through local access.
The Impact of CVE-2021-33098
The impact of this vulnerability is that an attacker could exploit it to cause denial of service, disrupting normal operations and potentially leading to system unavailability.
Technical Details of CVE-2021-33098
The technical details of CVE-2021-33098 include:
Vulnerability Description
The vulnerability arises from improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3.
Affected Systems and Versions
The affected product is the Intel(R) Ethernet ixgbe driver for Linux, specifically versions before 3.17.3.
Exploitation Mechanism
An authenticated user could exploit this vulnerability via local access to potentially enable denial of service.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-33098, consider the following:
Immediate Steps to Take
- Update the Intel(R) Ethernet ixgbe driver for Linux to version 3.17.3 or later.
- Monitor network traffic for any suspicious activity that may indicate exploitation of the vulnerability.
Long-Term Security Practices
- Regularly update and patch software to ensure that known vulnerabilities are addressed promptly.
- Implement network segmentation and access controls to limit the impact of potential security breaches.
Patching and Updates
Ensure timely installation of security patches provided by the vendor to address vulnerabilities such as CVE-2021-33098.