CVE - CVE-2021-3975

CVE-ID
CVE-2021-3975	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://security.netapp.com/advisory/ntap-20221201-0002/ MISC:https://access.redhat.com/security/cve/CVE-2021-3975 URL:https://access.redhat.com/security/cve/CVE-2021-3975 MISC:https://bugzilla.redhat.com/show_bug.cgi?id=2024326 URL:https://bugzilla.redhat.com/show_bug.cgi?id=2024326 MISC:https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7 URL:https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7 MISC:https://ubuntu.com/security/CVE-2021-3975 URL:https://ubuntu.com/security/CVE-2021-3975 MLIST:[debian-lts-announce] 20240401 [SECURITY] [DLA 3778-1] libvirt security update URL:https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
Assigning CNA
Red Hat, Inc.
Date Record Created
20211118	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20211118)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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