Vulnerability Description
A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Libvirt | < 2.33.0 |
| Fedoraproject | Fedora | 35 |
| Netapp | Ontap Select Deploy Administration Utility | - |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2034195Issue TrackingPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://security.netapp.com/advisory/ntap-20220513-0004/Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2034195Issue TrackingPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://security.netapp.com/advisory/ntap-20220513-0004/Third Party Advisory
FAQ
What is CVE-2021-4147?
CVE-2021-4147 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.
How severe is CVE-2021-4147?
CVE-2021-4147 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-4147?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Libvirt, Fedoraproject Fedora, Netapp Ontap Select Deploy Administration Utility.