Rapid7 Vulnerability & Exploit Database

Debian: CVE-2021-3667: libvirt -- security update

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Debian: CVE-2021-3667: libvirt -- security update

Severity
4
CVSS
(AV:N/AC:M/Au:S/C:N/I:N/A:P)
Published
03/02/2022
Created
04/04/2024
Added
04/03/2024
Modified
04/03/2024

Description

An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly released on ACL permission failure. Clients connecting to the read-write socket with limited ACL permissions could use this flaw to acquire the lock and prevent other users from accessing storage pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.

Solution(s)

  • debian-upgrade-libvirt

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;