CVE-2017-16239

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-11-14 · updated 2026-06-17

Description

In OpenStack Nova through 14.0.9, 15.x through 15.0.7, and 16.x through 16.0.2, by rebuilding an instance, an authenticated user may be able to circumvent the Filter Scheduler bypassing imposed filters (for example, the ImagePropertiesFilter or the IsolatedHostsFilter). All setups using Nova Filter Scheduler are affected. Because of the regression described in Launchpad Bug #1732947, the preferred fix is a 14.x version after 14.0.10, a 15.x version after 15.0.8, or a 16.x version after 16.0.3.

Affected products

OpenStack Nova: through 14.0.9; 15.0.0, 15.0.1, 15.0.2, 15.0.3, 15.0.4, 15.0.5 (+5)

References

http://www.securityfocus.com/bid/101950
https://access.redhat.com/errata/RHSA-2018:0241
https://access.redhat.com/errata/RHSA-2018:0314
https://access.redhat.com/errata/RHSA-2018:0369
https://launchpad.net/bugs/1664931
https://security.openstack.org/ossa/OSSA-2017-005.html
https://www.debian.org/security/2017/dsa-4056
http://www.securityfocus.com/bid/101950
https://access.redhat.com/errata/RHSA-2018:0241
https://access.redhat.com/errata/RHSA-2018:0314
https://access.redhat.com/errata/RHSA-2018:0369
https://launchpad.net/bugs/1664931

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