CVE-2021-3667
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.4%
exploitation probability
1.4%top 31% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
n/a · libvirtReferences
https://bugzilla.redhat.com/show_bug.cgi?id=1986094https://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87https://lists.debian.org/debian-lts-announce/2024/04/msg00000.htmlhttps://security.gentoo.org/glsa/202210-06https://security.netapp.com/advisory/ntap-20220331-0005/