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GoogleOSV:CVE-2022-0897HistoryMar 25, 2022 - 7:15 p.m.
CVE-2022-0897
2022-03-2519:15:10
Google
osv.dev
6
libvirt
nwfilter
driver
mutex
exploit
api
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).
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