CVE-2020-27835
4.4 · MEDIUMOverview
CVE-2020-27835 is a medium-severity vulnerability affecting linux infiniband_hfi1_driver. It was published on January 7, 2021 and has a CVSS 3.1 base score of 4.4 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.
Remediation
Check the references section for vendor advisories and patches from linux. Update infiniband_hfi1_driver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linux | infiniband_hfi1_driver | 0 | Affected |
Frequently Asked Questions
What is CVE-2020-27835?
CVE-2020-27835 is a medium-severity vulnerability affecting linux infiniband_hfi1_driver. It was published on January 7, 2021 and has a CVSS 3.1 base score of 4.4 (MEDIUM).
How severe is CVE-2020-27835?
This vulnerability has a CVSS 3.1 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-27835?
Check the references section for vendor advisories and patches from linux. Update infiniband_hfi1_driver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-27835?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-27835 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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