Medium severity · published Nov 14, 2017
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…
6.5
CVSS
1.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
Nova · Openstack
through 14.0.9; 15.0.0; 15.0.1; 15.0.2; 15.0.3; 15.0.4; +6 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-16239
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-16239
Third Party Advisory
http://www.securityfocus.com/bid/101950
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:0241
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:0314
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:0369
Issue Tracking
https://launchpad.net/bugs/1664931
Vendor Advisory
https://security.openstack.org/ossa/OSSA-2017-005.html
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