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
| 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 |
Configurations
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History
01 Apr 2024, 13:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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02 Dec 2022, 01:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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26 Aug 2022, 19:37
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-416 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
| CPE | cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:a:redhat:codeready_linux_builder:-:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:* cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:* 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:8.0:*:*:*:*:*:*:* |
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| References | (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2024326 - Issue Tracking, Patch, Third Party Advisory | |
| References | (MISC) https://access.redhat.com/security/cve/CVE-2021-3975 - Issue Tracking, Third Party Advisory | |
| References | (MISC) https://ubuntu.com/security/CVE-2021-3975 - Patch, Third Party Advisory | |
| References | (MISC) https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7 - Patch, Third Party Advisory |
23 Aug 2022, 20:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2022-08-23 20:15
Updated : 2024-04-01 13:16
NVD link : CVE-2021-3975
Mitre link : CVE-2021-3975
CVE.ORG link : CVE-2021-3975
JSON object : View
Products Affected
debian
- debian_linux
fedoraproject
- fedora
redhat
- enterprise_linux_server_tus
- enterprise_linux_for_ibm_z_systems_eus
- enterprise_linux_for_ibm_z_systems
- enterprise_linux_for_power_little_endian_eus
- libvirt
- enterprise_linux
- enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
- enterprise_linux_eus
- enterprise_linux_for_power_little_endian
- codeready_linux_builder
canonical
- ubuntu_linux
netapp
- ontap_select_deploy_administration_utility
CWE
CWE-416
Use After Free