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CVE-2017-16239

UnknownEPSS 1.41%

Last modified

CVE-2017-16239 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.41% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
1.41%

69.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
OpenstackNova<= 14.0.9
OpenstackNova15.0.0
OpenstackNova15.0.1
OpenstackNova15.0.2
OpenstackNova15.0.3
OpenstackNova15.0.4
OpenstackNova15.0.5
OpenstackNova15.0.6
OpenstackNova15.0.7
OpenstackNova16.0.0
OpenstackNova16.0.1
OpenstackNova16.0.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-16239?
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.
How severe is CVE-2017-16239?
Severity scoring for CVE-2017-16239 is pending analysis. The EPSS model estimates a 1.41% probability of exploitation in the next 30 days.
How do I fix CVE-2017-16239?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-16239?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST