6.5
CVSSv3

CVE-2021-4147

Published: 25/03/2022 Updated: 01/04/2024
CVSS v2 Base Score: 4.9 | Impact Score: 6.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 6.5 | Impact Score: 4 | Exploitability Score: 2
VMScore: 436
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Summary

It exists that libvirt incorrectly handled the libxl driver. An attacker inside a guest could possibly use this issue to cause libvirtd to crash or stop responding, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 21.10. (CVE-2021-4147)

Vulnerability Trend

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redhat libvirt

fedoraproject fedora 35

netapp ontap select deploy administration utility -

Vendor Advisories

Debian Bug report logs - #1002535 libvirt: CVE-2021-4147: deadlock and crash in libxl driver Package: src:libvirt; Maintainer for src:libvirt is Debian Libvirt Maintainers <pkg-libvirt-maintainers@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Thu, 23 Dec 2021 20:27:02 UTC Sever ...
Several security issues were fixed in libvirt ...
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 ...