vulnerability
Ubuntu: USN-5399-1 (CVE-2021-3667): libvirt vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:S/C:N/I:N/A:P) | Aug 23, 2021 | May 3, 2022 | Mar 27, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:S/C:N/I:N/A:P)
Published
Aug 23, 2021
Added
May 3, 2022
Modified
Mar 27, 2026
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.
Solutions
ubuntu-upgrade-libvirt-daemonubuntu-upgrade-libvirt-daemon-systemubuntu-upgrade-libvirt0
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