CVE-2020-10731 Misconfiguration in nova libvirt container provided by the Red Hat OpenStack Platform

Critical 9.9 Published Updated

The nova_libvirt container lacks SELinux, disabling sVirt isolation for virtual machines and allowing potential security bypasses.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2020-10731?

CVE-2020-10731 is a critical vulnerability in nova_libvirt container provided by the Red Hat OpenStack Platform, published on 31 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw was found in the nova_libvirt container provided by the Red Hat OpenStack Platform 16, where it does not have SELinux enabled. This flaw causes sVirt, an important isolation mechanism, to be disabled for all running virtual machines.

Weakness: CWE-284

Which versions are affected by CVE-2020-10731?

It affects 1 product.

Linux distribution packages (9)
openstack-tripleo-heat-templates Red Hat:openstack:15::el8All versions0:10.6.3-0.20200113185561.cf467ea.el8ost
paunch-services Red Hat:openstack:15::el8All versions0:4.5.3-0.20200108190460.3c38fe6.el8ost
python-paunch Red Hat:openstack:15::el8All versions0:4.5.3-0.20200108190460.3c38fe6.el8ost
python3-paunch Red Hat:openstack:15::el8All versions0:4.5.3-0.20200108190460.3c38fe6.el8ost
openstack-tripleo-heat-templates Red Hat:openstack:16.1::el8All versions0:11.3.2-0.20200616081532.396affd.el8ost
openstack-tripleo-heat-templates Red Hat:openstack:16::el8All versions0:11.3.2-0.20200405044628.ec9970c.el8ost
paunch-services Red Hat:openstack:16::el8All versions0:5.3.2-0.20200320172310.ebc49c4.el8ost
python-paunch Red Hat:openstack:16::el8All versions0:5.3.2-0.20200320172310.ebc49c4.el8ost
python3-paunch Red Hat:openstack:16::el8All versions0:5.3.2-0.20200320172310.ebc49c4.el8ost

Products include Redhat Openstack Platform.

How do I fix CVE-2020-10731?

Apply the vendor's patch.

Is CVE-2020-10731 being exploited?

There is no known exploitation of CVE-2020-10731 in the wild and no public exploit code.

Sources

Also known as GHSA-9m56-29jp-mr7j, RHSA-2020:3199, RHSA-2020:3406, RHSA-2020:3410.

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