CVE-2021-3667
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Redhat Libvirt
PublishedMar 2, 2022
First seenMar 2, 2022
Weakness typeCWE-667CWE-667
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat libvirt | 4.1.0 ≤ v ≤ 7.5.0 | — |
| redhat enterprise_linux | 8.0 | — |
| netapp ontap_select_deploy_administration_utility | No range specified | — |
| debian debian_linux | 10.0 | — |
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