RHSA-2018:2855

Vulnerability from csaf_redhat - Published: 2018-10-02 19:01 - Updated: 2025-11-21 18:06
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 9.0 (Mitaka). 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): * openstack-nova: Swapping encrypted volumes can allow an attacker to corrupt the LUKS header causing a denial of service in the host (CVE-2017-18191) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * This update fixes a race condition that could generate error messages and cause migration failures during nova live migrations. Prior to this update, if a domain was already cleaned out by periodic tasks, undefining the domain source during a live migration sometimes generated a "Domain not found (Code=42)" error. (BZ#1614325)
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-2017-18191

OpenStack Nova has a vulnerability in the handling of encrypted volumes. By detaching and reattaching an encrypted volume, an attacker may access the underlying raw volume and corrupt the LUKS header, resulting in a denial of service attack on the compute host. All Nova installations supporting encrypted volumes are affected.

6.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE-20 - Improper Input Validation
Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2018:2855
References
To clipboard 

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        "category": "default_component_of",
        "full_product_name": {
          "name": "openstack-nova-serialproxy-1:13.1.4-24.el7ost.noarch as a component of Red Hat OpenStack Platform 9.0",
          "product_id": "7Server-RH7-RHOS-9.0:openstack-nova-serialproxy-1:13.1.4-24.el7ost.noarch"
        },
        "product_reference": "openstack-nova-serialproxy-1:13.1.4-24.el7ost.noarch",
        "relates_to_product_reference": "7Server-RH7-RHOS-9.0"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "openstack-nova-spicehtml5proxy-1:13.1.4-24.el7ost.noarch as a component of Red Hat OpenStack Platform 9.0",
          "product_id": "7Server-RH7-RHOS-9.0:openstack-nova-spicehtml5proxy-1:13.1.4-24.el7ost.noarch"
        },
        "product_reference": "openstack-nova-spicehtml5proxy-1:13.1.4-24.el7ost.noarch",
        "relates_to_product_reference": "7Server-RH7-RHOS-9.0"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python-nova-1:13.1.4-24.el7ost.noarch as a component of Red Hat OpenStack Platform 9.0",
          "product_id": "7Server-RH7-RHOS-9.0:python-nova-1:13.1.4-24.el7ost.noarch"
        },
        "product_reference": "python-nova-1:13.1.4-24.el7ost.noarch",
        "relates_to_product_reference": "7Server-RH7-RHOS-9.0"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "python-nova-tests-1:13.1.4-24.el7ost.noarch as a component of Red Hat OpenStack Platform 9.0",
          "product_id": "7Server-RH7-RHOS-9.0:python-nova-tests-1:13.1.4-24.el7ost.noarch"
        },
        "product_reference": "python-nova-tests-1:13.1.4-24.el7ost.noarch",
        "relates_to_product_reference": "7Server-RH7-RHOS-9.0"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2017-18191",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "discovery_date": "2018-02-20T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1546937"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "OpenStack Nova has a vulnerability in the handling of encrypted volumes. By detaching and reattaching an encrypted volume, an attacker may access the underlying raw volume and corrupt the LUKS header, resulting in a denial of service attack on the compute host. All Nova installations supporting encrypted volumes are affected.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "openstack-nova: Swapping encrypted volumes can allow an attacker to corrupt the LUKS header causing a denial of service in the host",
          "title": "Vulnerability summary"
        },
        {
          "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"
        }
      ],
      "product_status": {
        "fixed": [
          "7Server-RH7-RHOS-9.0:openstack-nova-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-1:13.1.4-24.el7ost.src",
          "7Server-RH7-RHOS-9.0:openstack-nova-api-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-cells-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-cert-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-common-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-compute-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-conductor-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-console-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-migration-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-network-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-novncproxy-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-scheduler-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-serialproxy-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-nova-spicehtml5proxy-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:python-nova-1:13.1.4-24.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:python-nova-tests-1:13.1.4-24.el7ost.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-18191"
        },
        {
          "category": "external",
          "summary": "RHBZ#1546937",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1546937"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-18191",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-18191"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-18191",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18191"
        }
      ],
      "release_date": "2018-02-19T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2018-10-02T19:01:23+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "7Server-RH7-RHOS-9.0:openstack-nova-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-1:13.1.4-24.el7ost.src",
            "7Server-RH7-RHOS-9.0:openstack-nova-api-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-cells-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-cert-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-common-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-compute-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-conductor-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-console-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-migration-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-network-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-novncproxy-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-scheduler-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-serialproxy-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-spicehtml5proxy-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-nova-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-nova-tests-1:13.1.4-24.el7ost.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2018:2855"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "7Server-RH7-RHOS-9.0:openstack-nova-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-1:13.1.4-24.el7ost.src",
            "7Server-RH7-RHOS-9.0:openstack-nova-api-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-cells-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-cert-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-common-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-compute-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-conductor-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-console-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-migration-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-network-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-novncproxy-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-scheduler-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-serialproxy-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-nova-spicehtml5proxy-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-nova-1:13.1.4-24.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-nova-tests-1:13.1.4-24.el7ost.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "openstack-nova: Swapping encrypted volumes can allow an attacker to corrupt the LUKS header causing a denial of service in the host"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.