CVE-2021-3667
An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt.
Does this matter?
Lower severity and a low EPSS score (1.37%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.37% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- redhat/libvirt · redhat/enterprise linux · netapp/ontap select deploy administration utility · debian/debian linux
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1986094Issue Tracking, Vendor Advisory
- https://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87Patch, Third Party Advisory
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87Patch
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202210-06Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220331-0005/Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1986094Issue Tracking, Vendor Advisory
- https://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87Patch, Third Party Advisory
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87Patch
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202210-06Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220331-0005/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.