Medium severity · published Mar 25, 2022
CVE-2022-0897
A flaw was found in the libvirt nwfilter driver
4.3
CVSS
1%
EPSS
No
On KEV
Description
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libvirt · Redhat
through 1.1.1 · source: NVD
OS
Ontap Select Deploy Administration Utility · Netapp
All versions, or not specified · source: NVD
Affected product
OS
Ontap Select Deploy Administration Utility
Netapp
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-0897
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-0897
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2063883
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html
Third Party Advisory
https://security.gentoo.org/glsa/202210-06
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