CVE-2021-3975

CVE Details

Release Date:2022-08-23

Description


A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.

See more information about CVE-2021-3975 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 7 (libvirt)ELSA-2022-96682022-08-01
Oracle Linux version 7 (libvirt-python)ELSA-2022-96682022-08-01
Oracle Linux version 8 (hivex)ELSA-2022-17592022-05-17
Oracle Linux version 8 (hivex)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libguestfs)ELSA-2022-17592022-05-17
Oracle Linux version 8 (libguestfs)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libguestfs-winsupport)ELSA-2022-17592022-05-17
Oracle Linux version 8 (libguestfs-winsupport)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libiscsi)ELSA-2022-17592022-05-17
Oracle Linux version 8 (libiscsi)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libnbd)ELSA-2022-17592022-05-17
Oracle Linux version 8 (libnbd)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libtpms)ELSA-2022-17592022-05-17
Oracle Linux version 8 (libvirt)ELSA-2022-17592022-05-17
Oracle Linux version 8 (libvirt)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libvirt-dbus)ELSA-2022-17592022-05-17
Oracle Linux version 8 (libvirt-dbus)ELSA-2022-97002022-08-08
Oracle Linux version 8 (libvirt-python)ELSA-2022-17592022-05-17
Oracle Linux version 8 (libvirt-python)ELSA-2022-97002022-08-08
Oracle Linux version 8 (nbdkit)ELSA-2022-17592022-05-17
Oracle Linux version 8 (nbdkit)ELSA-2022-97002022-08-08
Oracle Linux version 8 (netcf)ELSA-2022-17592022-05-17
Oracle Linux version 8 (netcf)ELSA-2022-97002022-08-08
Oracle Linux version 8 (perl-Sys-Virt)ELSA-2022-17592022-05-17
Oracle Linux version 8 (perl-Sys-Virt)ELSA-2022-97002022-08-08
Oracle Linux version 8 (qemu-kvm)ELSA-2022-17592022-05-17
Oracle Linux version 8 (qemu-kvm)ELSA-2022-97002022-08-08
Oracle Linux version 8 (seabios)ELSA-2022-17592022-05-17
Oracle Linux version 8 (seabios)ELSA-2022-97002022-08-08
Oracle Linux version 8 (sgabios)ELSA-2022-17592022-05-17
Oracle Linux version 8 (sgabios)ELSA-2022-97002022-08-08
Oracle Linux version 8 (supermin)ELSA-2022-17592022-05-17
Oracle Linux version 8 (supermin)ELSA-2022-97002022-08-08
Oracle Linux version 8 (swtpm)ELSA-2022-17592022-05-17
Oracle Linux version 8 (virt-v2v)ELSA-2022-17592022-05-17



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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