rhsa-2018:2714
Vulnerability from csaf_redhat
Published
2018-09-17 17:00
Modified
2025-08-03 17:05
Summary
Red Hat Security Advisory: openstack-nova security and bug fix update

Notes

Topic
An update for openstack-nova is now available for Red Hat OpenStack Platform 10.0 (Newton). 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, including the impact, a CVSS score, and other related information, refer to the CVE page listed in the References section. Bug Fix(es): * Previously, the MTU of TAP devices was not configured. As a result, the network could be configured with a different MTU than a guest TAP device. With this update, you can configure libvirt when you create the TAP device for the guest. Nova passes the correct parameter to libvirt, and the TAP device now has the same configuration as the network. (BZ#1553839) * Previously, the MTU of TAP devices was not configured. As a result, the network could be configured with a different MTU than a guest TAP device. With this update, you can configure libvirt when you create the TAP device for the guest. Nova passes the correct parameter to libvirt, and the TAP device now has the same configuration as the network. (BZ#1553559) * Previously, the '[vnc] keymap' option was 'en-us' by default, and it was not possible to unset this configuration. As a result of this, non-US locales experienced ineffective key mappings. With this update, users can unset the '[vnc] keymap' value. In this case, the VNC client configures the locale and non-US users attain more effective key mappings. (BZ#1441962)
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.


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        "text": "An update for openstack-nova is now available for Red Hat OpenStack\nPlatform 10.0 (Newton).\n\nRed Hat Product Security has rated this update as having a security impact\nof Moderate. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section.",
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        "text": "OpenStack Compute (nova) launches and schedules large networks of virtual\nmachines, creating a redundant and scalable cloud computing platform.\nCompute provides the software, control panels, and APIs required to\norchestrate a cloud, including running virtual machine instances and\ncontrolling access through users and projects.\n\nSecurity Fix(es):\n\n* 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)\n\nFor more details about the security issue, including the impact, a CVSS score, and other related information, refer to the CVE page listed in the References section.\n\nBug Fix(es):\n\n* Previously, the MTU of TAP devices was not configured. As a result, the network could be configured with a different MTU than a guest TAP device.\n\nWith this update, you can configure libvirt when you create the TAP device for the guest. Nova passes the correct parameter to libvirt, and the TAP device now has the same configuration as the network. (BZ#1553839)\n\n* Previously, the MTU of TAP devices was not configured. As a result, the network could be configured with a different MTU than a guest TAP device.\n\nWith this update, you can configure libvirt when you create the TAP device for the guest. Nova passes the correct parameter to libvirt, and the TAP device now has the same configuration as the network. (BZ#1553559)\n\n* Previously, the \u0027[vnc] keymap\u0027 option was \u0027en-us\u0027 by default, and it was not possible to unset this configuration. As a result of this, non-US locales experienced ineffective key mappings.\n\nWith this update, users can unset the \u0027[vnc] keymap\u0027 value. In this case, the VNC client configures the locale and non-US users attain more effective key mappings. (BZ#1441962)",
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  },
  "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": [
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      },
      "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": "2018-09-17T17:00:51+00:00",
          "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2018:2714"
        }
      ],
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        {
          "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": [
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            "7Server-RH7-RHOS-10.0:openstack-nova-network-1:14.1.0-26.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-nova-novncproxy-1:14.1.0-26.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-nova-placement-api-1:14.1.0-26.el7ost.noarch",
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          ]
        }
      ],
      "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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