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.
Published: 2022-08-23
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3778-1 libvirt security update
Ubuntu USN Ubuntu USN USN-5399-1 libvirt vulnerabilities
History

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Subscriptions

Canonical Ubuntu Linux
Debian Debian Linux
Fedoraproject Fedora
Netapp Ontap Select Deploy Administration Utility
Redhat Advanced Virtualization Codeready Linux Builder Enterprise Linux Enterprise Linux Eus Enterprise Linux For Ibm Z Systems Enterprise Linux For Ibm Z Systems Eus Enterprise Linux For Power Little Endian Enterprise Linux For Power Little Endian Eus Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions Enterprise Linux Server Tus Libvirt
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:09:09.828Z

Reserved: 2021-11-18T00:00:00.000Z

Link: CVE-2021-3975

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-08-23T20:15:08.427

Modified: 2024-11-21T06:23:17.217

Link: CVE-2021-3975

cve-icon Redhat

Severity : Low

Publid Date: 2021-11-17T00:00:00Z

Links: CVE-2021-3975 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses