vulnerability
Red Hat: CVE-2021-3667: CVE-2021-3667 libvirt: Improper locking on ACL failure in virStoragePoolLookupByTargetPath API (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:S/C:N/I:N/A:P) | Sep 30, 2021 | Oct 1, 2021 | Aug 11, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:S/C:N/I:N/A:P)
Published
Sep 30, 2021
Added
Oct 1, 2021
Modified
Aug 11, 2025
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
no-fix-redhat-rpm-packageredhat-upgrade-hivexredhat-upgrade-hivex-debuginforedhat-upgrade-hivex-debugsourceredhat-upgrade-hivex-develredhat-upgrade-libguestfsredhat-upgrade-libguestfs-bash-completionredhat-upgrade-libguestfs-benchmarkingredhat-upgrade-libguestfs-benchmarking-debuginforedhat-upgrade-libguestfs-debuginforedhat-upgrade-libguestfs-debugsourceredhat-upgrade-libguestfs-develredhat-upgrade-libguestfs-gfs2redhat-upgrade-libguestfs-gobjectredhat-upgrade-libguestfs-gobject-debuginforedhat-upgrade-libguestfs-gobject-develredhat-upgrade-libguestfs-inspect-iconsredhat-upgrade-libguestfs-javaredhat-upgrade-libguestfs-java-debuginforedhat-upgrade-libguestfs-java-develredhat-upgrade-libguestfs-javadocredhat-upgrade-libguestfs-man-pages-jaredhat-upgrade-libguestfs-man-pages-ukredhat-upgrade-libguestfs-rescueredhat-upgrade-libguestfs-rsyncredhat-upgrade-libguestfs-toolsredhat-upgrade-libguestfs-tools-credhat-upgrade-libguestfs-tools-c-debuginforedhat-upgrade-libguestfs-winsupportredhat-upgrade-libguestfs-xfsredhat-upgrade-libiscsiredhat-upgrade-libiscsi-debuginforedhat-upgrade-libiscsi-debugsourceredhat-upgrade-libiscsi-develredhat-upgrade-libiscsi-utilsredhat-upgrade-libiscsi-utils-debuginforedhat-upgrade-libnbdredhat-upgrade-libnbd-debuginforedhat-upgrade-libnbd-debugsourceredhat-upgrade-libnbd-develredhat-upgrade-libvirtredhat-upgrade-libvirt-adminredhat-upgrade-libvirt-admin-debuginforedhat-upgrade-libvirt-bash-completionredhat-upgrade-libvirt-clientredhat-upgrade-libvirt-client-debuginforedhat-upgrade-libvirt-daemonredhat-upgrade-libvirt-daemon-config-networkredhat-upgrade-libvirt-daemon-config-nwfilterredhat-upgrade-libvirt-daemon-debuginforedhat-upgrade-libvirt-daemon-driver-interfaceredhat-upgrade-libvirt-daemon-driver-interface-debuginforedhat-upgrade-libvirt-daemon-driver-networkredhat-upgrade-libvirt-daemon-driver-network-debuginforedhat-upgrade-libvirt-daemon-driver-nodedevredhat-upgrade-libvirt-daemon-driver-nodedev-debuginforedhat-upgrade-libvirt-daemon-driver-nwfilterredhat-upgrade-libvirt-daemon-driver-nwfilter-debuginforedhat-upgrade-libvirt-daemon-driver-qemuredhat-upgrade-libvirt-daemon-driver-qemu-debuginforedhat-upgrade-libvirt-daemon-driver-secretredhat-upgrade-libvirt-daemon-driver-secret-debuginforedhat-upgrade-libvirt-daemon-driver-storageredhat-upgrade-libvirt-daemon-driver-storage-coreredhat-upgrade-libvirt-daemon-driver-storage-core-debuginforedhat-upgrade-libvirt-daemon-driver-storage-diskredhat-upgrade-libvirt-daemon-driver-storage-disk-debuginforedhat-upgrade-libvirt-daemon-driver-storage-glusterredhat-upgrade-libvirt-daemon-driver-storage-gluster-debuginforedhat-upgrade-libvirt-daemon-driver-storage-iscsiredhat-upgrade-libvirt-daemon-driver-storage-iscsi-debuginforedhat-upgrade-libvirt-daemon-driver-storage-iscsi-directredhat-upgrade-libvirt-daemon-driver-storage-iscsi-direct-debuginforedhat-upgrade-libvirt-daemon-driver-storage-logicalredhat-upgrade-libvirt-daemon-driver-storage-logical-debuginforedhat-upgrade-libvirt-daemon-driver-storage-mpathredhat-upgrade-libvirt-daemon-driver-storage-mpath-debuginforedhat-upgrade-libvirt-daemon-driver-storage-rbdredhat-upgrade-libvirt-daemon-driver-storage-rbd-debuginforedhat-upgrade-libvirt-daemon-driver-storage-scsiredhat-upgrade-libvirt-daemon-driver-storage-scsi-debuginforedhat-upgrade-libvirt-daemon-kvmredhat-upgrade-libvirt-dbusredhat-upgrade-libvirt-dbus-debuginforedhat-upgrade-libvirt-dbus-debugsourceredhat-upgrade-libvirt-debuginforedhat-upgrade-libvirt-debugsourceredhat-upgrade-libvirt-develredhat-upgrade-libvirt-docsredhat-upgrade-libvirt-libsredhat-upgrade-libvirt-libs-debuginforedhat-upgrade-libvirt-lock-sanlockredhat-upgrade-libvirt-lock-sanlock-debuginforedhat-upgrade-libvirt-nssredhat-upgrade-libvirt-nss-debuginforedhat-upgrade-libvirt-python-debugsourceredhat-upgrade-lua-guestfsredhat-upgrade-lua-guestfs-debuginforedhat-upgrade-nbdfuseredhat-upgrade-nbdfuse-debuginforedhat-upgrade-nbdkitredhat-upgrade-nbdkit-bash-completionredhat-upgrade-nbdkit-basic-filtersredhat-upgrade-nbdkit-basic-filters-debuginforedhat-upgrade-nbdkit-basic-pluginsredhat-upgrade-nbdkit-basic-plugins-debuginforedhat-upgrade-nbdkit-curl-pluginredhat-upgrade-nbdkit-curl-plugin-debuginforedhat-upgrade-nbdkit-debuginforedhat-upgrade-nbdkit-debugsourceredhat-upgrade-nbdkit-develredhat-upgrade-nbdkit-example-pluginsredhat-upgrade-nbdkit-example-plugins-debuginforedhat-upgrade-nbdkit-gzip-pluginredhat-upgrade-nbdkit-gzip-plugin-debuginforedhat-upgrade-nbdkit-linuxdisk-pluginredhat-upgrade-nbdkit-linuxdisk-plugin-debuginforedhat-upgrade-nbdkit-python-pluginredhat-upgrade-nbdkit-python-plugin-debuginforedhat-upgrade-nbdkit-serverredhat-upgrade-nbdkit-server-debuginforedhat-upgrade-nbdkit-ssh-pluginredhat-upgrade-nbdkit-ssh-plugin-debuginforedhat-upgrade-nbdkit-vddk-pluginredhat-upgrade-nbdkit-vddk-plugin-debuginforedhat-upgrade-nbdkit-xz-filterredhat-upgrade-nbdkit-xz-filter-debuginforedhat-upgrade-netcfredhat-upgrade-netcf-debuginforedhat-upgrade-netcf-debugsourceredhat-upgrade-netcf-develredhat-upgrade-netcf-libsredhat-upgrade-netcf-libs-debuginforedhat-upgrade-ocaml-hivexredhat-upgrade-ocaml-hivex-debuginforedhat-upgrade-ocaml-hivex-develredhat-upgrade-ocaml-libguestfsredhat-upgrade-ocaml-libguestfs-debuginforedhat-upgrade-ocaml-libguestfs-develredhat-upgrade-ocaml-libnbdredhat-upgrade-ocaml-libnbd-debuginforedhat-upgrade-ocaml-libnbd-develredhat-upgrade-perl-hivexredhat-upgrade-perl-hivex-debuginforedhat-upgrade-perl-sys-guestfsredhat-upgrade-perl-sys-guestfs-debuginforedhat-upgrade-perl-sys-virtredhat-upgrade-perl-sys-virt-debuginforedhat-upgrade-perl-sys-virt-debugsourceredhat-upgrade-python3-hivexredhat-upgrade-python3-hivex-debuginforedhat-upgrade-python3-libguestfsredhat-upgrade-python3-libguestfs-debuginforedhat-upgrade-python3-libnbdredhat-upgrade-python3-libnbd-debuginforedhat-upgrade-python3-libvirtredhat-upgrade-python3-libvirt-debuginforedhat-upgrade-qemu-guest-agentredhat-upgrade-qemu-guest-agent-debuginforedhat-upgrade-qemu-imgredhat-upgrade-qemu-img-debuginforedhat-upgrade-qemu-kvmredhat-upgrade-qemu-kvm-block-curlredhat-upgrade-qemu-kvm-block-curl-debuginforedhat-upgrade-qemu-kvm-block-glusterredhat-upgrade-qemu-kvm-block-gluster-debuginforedhat-upgrade-qemu-kvm-block-iscsiredhat-upgrade-qemu-kvm-block-iscsi-debuginforedhat-upgrade-qemu-kvm-block-rbdredhat-upgrade-qemu-kvm-block-rbd-debuginforedhat-upgrade-qemu-kvm-block-sshredhat-upgrade-qemu-kvm-block-ssh-debuginforedhat-upgrade-qemu-kvm-commonredhat-upgrade-qemu-kvm-common-debuginforedhat-upgrade-qemu-kvm-coreredhat-upgrade-qemu-kvm-core-debuginforedhat-upgrade-qemu-kvm-debuginforedhat-upgrade-qemu-kvm-debugsourceredhat-upgrade-qemu-kvm-testsredhat-upgrade-qemu-kvm-tests-debuginforedhat-upgrade-ruby-hivexredhat-upgrade-ruby-hivex-debuginforedhat-upgrade-ruby-libguestfsredhat-upgrade-ruby-libguestfs-debuginforedhat-upgrade-seabiosredhat-upgrade-seabios-binredhat-upgrade-seavgabios-binredhat-upgrade-sgabiosredhat-upgrade-sgabios-binredhat-upgrade-slofredhat-upgrade-superminredhat-upgrade-supermin-debuginforedhat-upgrade-supermin-debugsourceredhat-upgrade-supermin-develredhat-upgrade-virt-dibredhat-upgrade-virt-dib-debuginforedhat-upgrade-virt-v2vredhat-upgrade-virt-v2v-debuginfo
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.