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://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7 | Patch Third Party Advisory |
https://ubuntu.com/security/CVE-2021-3975 | Patch Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=2024326 | Issue Tracking Patch Third Party Advisory |
https://security.netapp.com/advisory/ntap-20221201-0002/ | Third Party Advisory |
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Information
Published : 2022-08-23 13:15
Updated : 2023-02-03 08:30
NVD link : CVE-2021-3975
Mitre link : CVE-2021-3975
JSON object : View
CWE
CWE-416
Use After Free
Products Affected
redhat
- enterprise_linux_for_power_little_endian
- enterprise_linux
- enterprise_linux_for_ibm_z_systems
- codeready_linux_builder
- libvirt
- enterprise_linux_for_ibm_z_systems_eus
- enterprise_linux_server_tus
- enterprise_linux_for_power_little_endian_eus
- enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
- enterprise_linux_eus
fedoraproject
- fedora
canonical
- ubuntu_linux
netapp
- ontap_select_deploy_administration_utility
debian
- debian_linux