Vulnerabilities > CVE-2022-0897
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
LOW Summary
A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the driver->nwfilters mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the driver->nwfilters object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt's API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).
Vulnerable Configurations
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2063883
- https://bugzilla.redhat.com/show_bug.cgi?id=2063883
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
- https://security.gentoo.org/glsa/202210-06
- https://security.gentoo.org/glsa/202210-06