CVE-2017-17051

Description

An issue was discovered in the default FilterScheduler in OpenStack Nova 16.0.3. By repeatedly rebuilding an instance with new images, an authenticated user may consume untracked resources on a hypervisor host leading to a denial of service, aka doubled resource allocations. This regression was introduced with the fix for OSSA-2017-005 (CVE-2017-16239); however, only Nova stable/pike or later deployments with that fix applied and relying on the default FilterScheduler are affected.

Category

8.6
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.84% Top 30%
Vendor Advisory openstack.org Vendor Advisory openstack.org Vendor Advisory openstack.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://review.openstack.org/521662 vendor advisory
https://security.openstack.org/ossa/OSSA-2017-006.html vendor advisory
https://review.openstack.org/523214 vendor advisory
https://launchpad.net/bugs/1732976 third party advisory issue tracking
http://www.securityfocus.com/bid/102102 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2017-17051?
CVE-2017-17051 has been scored as a high severity vulnerability.
How to fix CVE-2017-17051?
To fix CVE-2017-17051, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-17051 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-17051 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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