CVE-2021-32843
6.2 · MEDIUMOverview
CVE-2021-32843 is a medium-severity vulnerability affecting mobyproject hyperkit. It was published on February 17, 2023 and has a CVSS 3.1 base score of 6.2 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, `virtio.c` has is a call to `vc_cfgread` that does not check for null which when called makes the host crash. This issue may lead to a guest crashing the host causing a denial of service. This issue is fixed in commit df0e46c7dbfd81a957d85e449ba41b52f6f7beb4.
Remediation
Check the references section for vendor advisories and patches from mobyproject. Update hyperkit 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 |
|---|---|---|---|
| mobyproject | hyperkit | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2021-32843?
CVE-2021-32843 is a medium-severity vulnerability affecting mobyproject hyperkit. It was published on February 17, 2023 and has a CVSS 3.1 base score of 6.2 (MEDIUM).
How severe is CVE-2021-32843?
This vulnerability has a CVSS 3.1 base score of 6.2, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-32843?
Check the references section for vendor advisories and patches from mobyproject. Update hyperkit 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-2021-32843?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-32843 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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