Use After Free Affecting libvirt-daemon-driver-nodedev package, versions <0:5.7.0-34.el7
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Test your applications- Snyk ID SNYK-ORACLE7-LIBVIRTDAEMONDRIVERNODEDEV-2964838
- published 18 May 2022
- disclosed 23 Aug 2022
Introduced: 18 May 2022
CVE-2021-3975 Open this link in a new tabHow to fix?
Upgrade Oracle:7 libvirt-daemon-driver-nodedev to version 0:5.7.0-34.el7 or higher.
This issue was patched in ELSA-2022-9668.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libvirt-daemon-driver-nodedev package and not the libvirt-daemon-driver-nodedev package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
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
- https://linux.oracle.com/cve/CVE-2021-3975.html
- https://linux.oracle.com/errata/ELSA-2022-1759.html
- https://linux.oracle.com/errata/ELSA-2022-9700.html
- https://access.redhat.com/security/cve/CVE-2021-3975
- https://bugzilla.redhat.com/show_bug.cgi?id=2024326
- https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7
- https://security.netapp.com/advisory/ntap-20221201-0002/
- https://ubuntu.com/security/CVE-2021-3975
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html