CVE-2021-3975

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://access.redhat.com/security/cve/CVE-2021-3975 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2024326 Issue Tracking Patch Third Party Advisory
https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
https://security.netapp.com/advisory/ntap-20221201-0002/ Third Party Advisory
https://ubuntu.com/security/CVE-2021-3975 Patch Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-3975 Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2024326 Issue Tracking Patch Third Party Advisory
https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
https://security.netapp.com/advisory/ntap-20221201-0002/ Third Party Advisory
https://ubuntu.com/security/CVE-2021-3975 Patch Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:a:redhat:codeready_linux_builder:-:*:*:*:*:*:*:*
OR cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:*

Configuration 6 (hide)

OR cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Configuration 7 (hide)

cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
History

21 Nov 2024, 06:23

Type Values Removed Values Added
References () https://access.redhat.com/security/cve/CVE-2021-3975 - Issue Tracking, Third Party Advisory () https://access.redhat.com/security/cve/CVE-2021-3975 - Issue Tracking, Third Party Advisory
References () https://bugzilla.redhat.com/show_bug.cgi?id=2024326 - Issue Tracking, Patch, Third Party Advisory () https://bugzilla.redhat.com/show_bug.cgi?id=2024326 - Issue Tracking, Patch, Third Party Advisory
References () https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7 - Patch, Third Party Advisory () https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7 - Patch, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html - () https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html -
References () https://security.netapp.com/advisory/ntap-20221201-0002/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20221201-0002/ - Third Party Advisory
References () https://ubuntu.com/security/CVE-2021-3975 - Patch, Third Party Advisory () https://ubuntu.com/security/CVE-2021-3975 - Patch, Third Party Advisory

01 Apr 2024, 13:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html -
Information

Published : 2022-08-23 20:15

Updated : 2024-11-21 06:23

NVD link : CVE-2021-3975

Mitre link : CVE-2021-3975

CVE.ORG link : CVE-2021-3975

JSON object : View

Products Affected

redhat

  • enterprise_linux_for_ibm_z_systems
  • enterprise_linux_for_power_little_endian
  • codeready_linux_builder
  • enterprise_linux_for_power_little_endian_eus
  • enterprise_linux_for_ibm_z_systems_eus
  • enterprise_linux_server_tus
  • enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
  • libvirt
  • enterprise_linux
  • enterprise_linux_eus

debian

  • debian_linux

fedoraproject

  • fedora

canonical

  • ubuntu_linux

netapp

  • ontap_select_deploy_administration_utility
CWE
CWE-416

Use After Free