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Vulnerability Details : CVE-2021-3975

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.
Publish Date : 2022-08-23 Last Update Date : 2023-02-03
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- CVSS Scores & Vulnerability Types

CVSS Score
0.0
Confidentiality Impact ???
Integrity Impact ???
Availability Impact ???
Access Complexity ???
Authentication ???
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 416

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2022:1759: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20221759 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2021-3975

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 21.10 * * * Version Details Vulnerabilities
2 OS Debian Debian Linux 10.0 * * * Version Details Vulnerabilities
3 OS Debian Debian Linux 11.0 * * * Version Details Vulnerabilities
4 OS Fedoraproject Fedora 35 * * * Version Details Vulnerabilities
5 Application Netapp Ontap Select Deploy Administration Utility - * * * Version Details Vulnerabilities
6 OS Redhat Enterprise Linux 8.0 * * * Version Details Vulnerabilities
7 OS Redhat Enterprise Linux Eus 8.6 * * * Version Details Vulnerabilities
8 OS Redhat Enterprise Linux For Ibm Z Systems 8.0 * * * Version Details Vulnerabilities
9 OS Redhat Enterprise Linux For Ibm Z Systems Eus 8.6 * * * Version Details Vulnerabilities
10 OS Redhat Enterprise Linux For Power Little Endian 8.0 * * * Version Details Vulnerabilities
11 OS Redhat Enterprise Linux For Power Little Endian Eus 8.6 * * * Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 8.6 * * * Version Details Vulnerabilities
13 OS Redhat Enterprise Linux Server Tus 8.6 * * * Version Details Vulnerabilities
14 Application Redhat Libvirt * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 1
Debian Debian Linux 2
Fedoraproject Fedora 1
Netapp Ontap Select Deploy Administration Utility 1
Redhat Enterprise Linux 1
Redhat Enterprise Linux Eus 1
Redhat Enterprise Linux For Ibm Z Systems 1
Redhat Enterprise Linux For Ibm Z Systems Eus 1
Redhat Enterprise Linux For Power Little Endian 1
Redhat Enterprise Linux For Power Little Endian Eus 1
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions 1
Redhat Enterprise Linux Server Tus 1
Redhat Libvirt 1

- References For CVE-2021-3975

https://security.netapp.com/advisory/ntap-20221201-0002/ CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=2024326
https://ubuntu.com/security/CVE-2021-3975
https://access.redhat.com/security/cve/CVE-2021-3975
https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0

- Metasploit Modules Related To CVE-2021-3975

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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