Medium severity · published May 24, 2021
CVE-2021-3559
A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0
6.5
CVSS
1%
EPSS
No
On KEV
Description
A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0. It only affects hosts with a PCI device and driver that supports mediated devices (e.g., GRID driver). This flaw could be used by an unprivileged client with a read-only connection to crash the libvirt daemon by executing the 'nodedev-list' virsh command. The highest threat from this vulnerability is to system availability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
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
6.10.0 before 7.0.0 · 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-2021-3559
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3559
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1962306
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210706-0006/
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