CVE-2021-3667
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.
| Software | From | Fixed in |
|---|---|---|
| redhat / enterprise_linux | 8.0 | 8.0.x |
| redhat / libvirt | 4.1.0 | 7.5.0.x |
| debian / debian_linux | 10.0 | 10.0.x |
- https://bugzilla.redhat.com/show_bug.cgi?id=1986094
- https://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87
- https://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://security.gentoo.org/glsa/202210-06
- https://security.netapp.com/advisory/ntap-20220331-0005/
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