CVE-2021-3667

CVE Details

Release Date:2022-03-02

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.

See more information about CVE-2021-3667 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 6.5 Base Metrics: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector: Network Attack Complexity: Low
Privileges Required: Low User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: None Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 8 (hivex)ELSA-2021-41912021-11-16
Oracle Linux version 8 (libguestfs)ELSA-2021-41912021-11-16
Oracle Linux version 8 (libguestfs-winsupport)ELSA-2021-41912021-11-16
Oracle Linux version 8 (libiscsi)ELSA-2021-41912021-11-16
Oracle Linux version 8 (libnbd)ELSA-2021-41912021-11-16
Oracle Linux version 8 (libvirt)ELSA-2021-41912021-11-16
Oracle Linux version 8 (libvirt-dbus)ELSA-2021-41912021-11-16
Oracle Linux version 8 (libvirt-python)ELSA-2021-41912021-11-16
Oracle Linux version 8 (nbdkit)ELSA-2021-41912021-11-16
Oracle Linux version 8 (netcf)ELSA-2021-41912021-11-16
Oracle Linux version 8 (perl-Sys-Virt)ELSA-2021-41912021-11-16
Oracle Linux version 8 (qemu-kvm)ELSA-2021-41912021-11-16
Oracle Linux version 8 (seabios)ELSA-2021-41912021-11-16
Oracle Linux version 8 (sgabios)ELSA-2021-41912021-11-16
Oracle Linux version 8 (supermin)ELSA-2021-41912021-11-16



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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