Vulnerability-Lookup

RHSA-2018:0241

Vulnerability from csaf_redhat - Published: 2018-01-30 19:56 - Updated: 2026-07-31 14:36

Summary

Red Hat Security Advisory: openstack-nova security and bug fix update

Severity

Moderate

Notes

Topic: An update for openstack-nova is now available for Red Hat OpenStack Platform 12.0 (Pike). Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: OpenStack Compute (nova) launches and schedules large networks of virtual machines, creating a redundant and scalable cloud computing platform. Compute provides the software, control panels, and APIs required to orchestrate a cloud, including running virtual machine instances and controlling access through users and projects. Security Fix(es): * By rebuilding an instance using a new image, an authenticated user may be able to circumvent the Filter Scheduler, bypassing imposed filters (for example, the ImagePropertiesFilter or the IsolatedHostsFilter). (CVE-2017-16239) Red Hat would like to thank the OpenStack project for reporting this issue. Upstream acknowledges George Shuklin (Servers.com) as the original reporter.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2017-16239

By rebuilding an instance using a new image, an authenticated user may be able to circumvent the Filter Scheduler, bypassing imposed filters (for example, the ImagePropertiesFilter or the IsolatedHostsFilter).

5.4 (Medium)


                
                  CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

CWE-841 - Improper Enforcement of Behavioral Workflow

Affected products

Fixed 17 products

Product	Version	Remediation
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-1:16.0.2-9.el7ost.src	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-api-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-cells-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-common-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-compute-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-conductor-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-console-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-migration-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-network-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-novncproxy-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-placement-api-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-scheduler-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-serialproxy-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:openstack-nova-spicehtml5proxy-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:python-nova-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix
Unresolved product id: 7Server-RH7-RHOS-12.0:python-nova-tests-1:16.0.2-9.el7ost.noarch	—	Vendor Fix fix

Threats

Impact Moderate

References

11 references

URL	Category
https://access.redhat.com/errata/RHSA-2018:0241	self
https://access.redhat.com/security/updates/classi…	external
https://bugzilla.redhat.com/show_bug.cgi?id=1508539	external
https://bugzilla.redhat.com/show_bug.cgi?id=1518879	external
https://bugzilla.redhat.com/show_bug.cgi?id=1527644	external
https://bugzilla.redhat.com/show_bug.cgi?id=1533161	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2017-16239	self
https://bugzilla.redhat.com/show_bug.cgi?id=1508539	external
https://www.cve.org/CVERecord?id=CVE-2017-16239	external
https://nvd.nist.gov/vuln/detail/CVE-2017-16239	external

Acknowledgments

the OpenStack project

Servers.com George Shuklin

JSON

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    {
      "acknowledgments": [
        {
          "names": [
            "the OpenStack project"
          ]
        },
        {
          "names": [
            "George Shuklin"
          ],
          "organization": "Servers.com",
          "summary": "Acknowledged by upstream."
        }
      ],
      "cve": "CVE-2017-16239",
      "cwe": {
        "id": "CWE-841",
        "name": "Improper Enforcement of Behavioral Workflow"
      },
      "discovery_date": "2017-10-31T00:00:00+00:00",
      "ids": [
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        },
        {
          "category": "summary",
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          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The upstream fix requires RequestSpec, which was introduced in OSP10. Patching versions, prior to version 10, comes with a considerable risk of introducing new bugs. Based on the impact of this vulnerability it was determined that OSP6 to 9 would not be fixed.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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      "product_status": {
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}

CVE-2017-16239 (GCVE-0-2017-16239)

Vulnerability from cvelistv5 – Published: 2017-11-14 17:00 – Updated: 2024-08-05 20:20

Summary

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.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2286 records in the last 180 days details

References

7 references

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

Date Public

2017-11-14 00:00

Show details on NVD website

JSON

To clipboard

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            },
            {
              "name": "RHSA-2018:0241",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:0241"
            },
            {
              "name": "DSA-4056",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2017/dsa-4056"
            },
            {
              "name": "https://launchpad.net/bugs/1664931",
              "refsource": "CONFIRM",
              "url": "https://launchpad.net/bugs/1664931"
            },
            {
              "name": "https://security.openstack.org/ossa/OSSA-2017-005.html",
              "refsource": "CONFIRM",
              "url": "https://security.openstack.org/ossa/OSSA-2017-005.html"
            },
            {
              "name": "RHSA-2018:0314",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:0314"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2017-16239",
    "datePublished": "2017-11-14T17:00:00.000Z",
    "dateReserved": "2017-10-31T00:00:00.000Z",
    "dateUpdated": "2024-08-05T20:20:05.208Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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