CVE-2019-3840
5.8 · MEDIUMOverview
CVE-2019-3840 is a medium-severity vulnerability affecting redhat libvirt. It was published on March 27, 2019 and has a CVSS 3.0 base score of 5.8 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 5.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
A NULL pointer dereference flaw was discovered in libvirt before version 5.0.0 in the way it gets interface information through the QEMU agent. An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service.
Remediation
Check the references section for vendor advisories and patches from redhat. Update libvirt 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 |
|---|---|---|---|
| redhat | libvirt | >= 0, < 5.0.0 | Affected |
References
Frequently Asked Questions
What is CVE-2019-3840?
CVE-2019-3840 is a medium-severity vulnerability affecting redhat libvirt. It was published on March 27, 2019 and has a CVSS 3.0 base score of 5.8 (MEDIUM).
How severe is CVE-2019-3840?
This vulnerability has a CVSS 3.0 base score of 5.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2019-3840?
Check the references section for vendor advisories and patches from redhat. Update libvirt 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-2019-3840?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-3840 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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