rhsa-2018:2715
Vulnerability from csaf_redhat
Published
2018-09-17 16:52
Modified
2024-11-15 00:36
Summary
Red Hat Security Advisory: openstack-neutron security and bug fix update

Notes

Topic
An update for openstack-neutron 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 Networking (neutron) is a pluggable, scalable, and API-driven system that provisions networking services to virtual machines. Its main function is to manage connectivity to and from virtual machines. Security Fix(es): * openstack-neutron: A router interface out of subnet IP range results in a denial of service (CVE-2018-14635) 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): * A new configuration option bridge_mac_table_size has been added for the neutron OVS agent. This value is set on every Open vSwitch bridge managed by the openvswitch-neutron-agent. The value controls the maximum number of MAC addresses that can be learned on a bridge. The default value for this new option is 50,000, which should be enough for most systems. Values outside a reasonable range (10 to 1,000,000) might be overridden by Open vSwitch. (BZ#1589031) * Previously, when a VM was destroyed, the IPv6 lease was not removed from dnsmasq lease files due to a missing dhcp_release6 binary. With this update, the dhcp_release6 binary is now provided in an updated dnsmasq-utils package version. (BZ#1545006)
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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  "vulnerabilities": [
    {
      "cve": "CVE-2018-14635",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "discovery_date": "2018-07-24T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1607822"
        }
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      "notes": [
        {
          "category": "description",
          "text": "When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an IP address, bypassing IP address validation. A potential denial of service could occur if an IP address, conflicting with existing guests or routers, is then assigned from outside of the allowed allocation pool.",
          "title": "Vulnerability description"
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          "text": "openstack-neutron: A router interface out of subnet IP range results in a denial of service",
          "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"
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          "7Server-RH7-RHOS-10.0:openstack-neutron-linuxbridge-1:9.4.1-28.el7ost.noarch",
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          "7Server-RH7-RHOS-10.0:openstack-neutron-metering-agent-1:9.4.1-28.el7ost.noarch",
          "7Server-RH7-RHOS-10.0:openstack-neutron-ml2-1:9.4.1-28.el7ost.noarch",
          "7Server-RH7-RHOS-10.0:openstack-neutron-openvswitch-1:9.4.1-28.el7ost.noarch",
          "7Server-RH7-RHOS-10.0:openstack-neutron-rpc-server-1:9.4.1-28.el7ost.noarch",
          "7Server-RH7-RHOS-10.0:openstack-neutron-sriov-nic-agent-1:9.4.1-28.el7ost.noarch",
          "7Server-RH7-RHOS-10.0:python-neutron-1:9.4.1-28.el7ost.noarch",
          "7Server-RH7-RHOS-10.0:python-neutron-tests-1:9.4.1-28.el7ost.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2018-14635"
        },
        {
          "category": "external",
          "summary": "RHBZ#1607822",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1607822"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2018-14635",
          "url": "https://www.cve.org/CVERecord?id=CVE-2018-14635"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-14635",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14635"
        }
      ],
      "release_date": "2018-03-21T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2018-09-17T16:52:42+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-10.0:openstack-neutron-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-1:9.4.1-28.el7ost.src",
            "7Server-RH7-RHOS-10.0:openstack-neutron-common-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-linuxbridge-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-macvtap-agent-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-metering-agent-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-ml2-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-openvswitch-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-rpc-server-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-sriov-nic-agent-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:python-neutron-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:python-neutron-tests-1:9.4.1-28.el7ost.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2018:2715"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "7Server-RH7-RHOS-10.0:openstack-neutron-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-1:9.4.1-28.el7ost.src",
            "7Server-RH7-RHOS-10.0:openstack-neutron-common-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-linuxbridge-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-macvtap-agent-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-metering-agent-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-ml2-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-openvswitch-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-rpc-server-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:openstack-neutron-sriov-nic-agent-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:python-neutron-1:9.4.1-28.el7ost.noarch",
            "7Server-RH7-RHOS-10.0:python-neutron-tests-1:9.4.1-28.el7ost.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "openstack-neutron: A router interface out of subnet IP range results in a denial of service"
    }
  ]
}


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