rhsa-2017_2450
Vulnerability from csaf_redhat
Published
2017-08-08 22:29
Modified
2024-11-14 23:36
Summary
Red Hat Security Advisory: openstack-neutron security update
Notes
Topic
An update for openstack-neutron is now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7.
Red Hat Product Security has rated this update as having a security impact of Important. 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):
* A race-condition flaw was discovered in openstack-neutron where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources. (CVE-2017-7543)
This issue was discovered by Paul Needle (Red Hat).
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.
{ document: { aggregate_severity: { namespace: "https://access.redhat.com/security/updates/classification/", text: "Important", }, category: "csaf_security_advisory", csaf_version: "2.0", distribution: { text: "Copyright © Red Hat, Inc. All rights reserved.", tlp: { label: "WHITE", url: "https://www.first.org/tlp/", }, }, lang: "en", notes: [ { category: "summary", text: "An update for openstack-neutron is now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7.\n\nRed Hat Product Security has rated this update as having a security impact of Important. 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.", title: "Topic", }, { category: "general", text: "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.\n\nSecurity Fix(es):\n\n* A race-condition flaw was discovered in openstack-neutron where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources. (CVE-2017-7543)\n\nThis issue was discovered by Paul Needle (Red Hat).", title: "Details", }, { category: "legal_disclaimer", text: "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.", title: "Terms of Use", }, ], publisher: { category: "vendor", contact_details: "https://access.redhat.com/security/team/contact/", issuing_authority: "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", name: "Red Hat Product Security", namespace: "https://www.redhat.com", }, references: [ { category: "self", summary: "https://access.redhat.com/errata/RHSA-2017:2450", url: "https://access.redhat.com/errata/RHSA-2017:2450", }, { category: "external", summary: "https://access.redhat.com/security/updates/classification/#important", url: "https://access.redhat.com/security/updates/classification/#important", }, { category: "external", summary: "1473792", url: "https://bugzilla.redhat.com/show_bug.cgi?id=1473792", }, { category: "self", summary: "Canonical URL", url: 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"openstack-neutron-sriov-nic-agent-0:2015.1.4-16.1.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7", product_id: "7Server-RH7-RHOS-7.0:openstack-neutron-sriov-nic-agent-0:2015.1.4-16.1.el7ost.noarch", }, product_reference: "openstack-neutron-sriov-nic-agent-0:2015.1.4-16.1.el7ost.noarch", relates_to_product_reference: "7Server-RH7-RHOS-7.0", }, { category: "default_component_of", full_product_name: { name: "openstack-neutron-vmware-0:2015.1.4-16.1.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7", product_id: "7Server-RH7-RHOS-7.0:openstack-neutron-vmware-0:2015.1.4-16.1.el7ost.noarch", }, product_reference: "openstack-neutron-vmware-0:2015.1.4-16.1.el7ost.noarch", relates_to_product_reference: "7Server-RH7-RHOS-7.0", }, { category: "default_component_of", full_product_name: { name: "python-neutron-0:2015.1.4-16.1.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7", product_id: "7Server-RH7-RHOS-7.0:python-neutron-0:2015.1.4-16.1.el7ost.noarch", }, product_reference: "python-neutron-0:2015.1.4-16.1.el7ost.noarch", relates_to_product_reference: "7Server-RH7-RHOS-7.0", }, { category: "default_component_of", full_product_name: { name: "python-neutron-tests-0:2015.1.4-16.1.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7", product_id: "7Server-RH7-RHOS-7.0:python-neutron-tests-0:2015.1.4-16.1.el7ost.noarch", }, product_reference: "python-neutron-tests-0:2015.1.4-16.1.el7ost.noarch", relates_to_product_reference: "7Server-RH7-RHOS-7.0", }, ], }, vulnerabilities: [ { acknowledgments: [ { names: [ "Paul Needle", ], organization: "Red Hat", summary: "This issue was discovered by Red Hat.", }, ], cve: "CVE-2017-7543", cwe: { id: "CWE-362", name: "Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')", }, discovery_date: "2017-07-20T00:00:00+00:00", ids: [ { system_name: "Red Hat Bugzilla ID", text: "1473792", }, ], notes: [ { category: "description", text: "A race-condition flaw was discovered in openstack-neutron where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.", title: "Vulnerability description", }, { category: "summary", text: "openstack-neutron: iptables not active after update", title: "Vulnerability summary", }, { category: "general", text: "The CVSS score(s) listed for this vulnerability do not reflect the associated product's 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-7.0:openstack-neutron-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-0:2015.1.4-16.1.el7ost.src", "7Server-RH7-RHOS-7.0:openstack-neutron-bigswitch-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-brocade-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-cisco-0:2015.1.4-16.1.el7ost.noarch", 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"7Server-RH7-RHOS-7.0:openstack-neutron-oneconvergence-nvsd-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-opencontrail-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-openvswitch-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ovsvapp-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-plumgrid-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-sriov-nic-agent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-vmware-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:python-neutron-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:python-neutron-tests-0:2015.1.4-16.1.el7ost.noarch", ], }, references: [ { category: "self", summary: "Canonical URL", url: "https://access.redhat.com/security/cve/CVE-2017-7543", }, { category: "external", summary: "RHBZ#1473792", url: "https://bugzilla.redhat.com/show_bug.cgi?id=1473792", }, { category: "external", summary: "https://www.cve.org/CVERecord?id=CVE-2017-7543", url: "https://www.cve.org/CVERecord?id=CVE-2017-7543", }, { category: "external", summary: "https://nvd.nist.gov/vuln/detail/CVE-2017-7543", url: "https://nvd.nist.gov/vuln/detail/CVE-2017-7543", }, ], release_date: "2017-08-08T00:00:00+00:00", remediations: [ { category: "vendor_fix", date: "2017-08-08T22:29:56+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-7.0:openstack-neutron-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-0:2015.1.4-16.1.el7ost.src", "7Server-RH7-RHOS-7.0:openstack-neutron-bigswitch-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-brocade-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-cisco-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-common-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-embrane-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ibm-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-linuxbridge-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-mellanox-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-metaplugin-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-metering-agent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-midonet-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ml2-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-nec-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-nuage-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ofagent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-oneconvergence-nvsd-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-opencontrail-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-openvswitch-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ovsvapp-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-plumgrid-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-sriov-nic-agent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-vmware-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:python-neutron-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:python-neutron-tests-0:2015.1.4-16.1.el7ost.noarch", ], restart_required: { category: "none", }, url: "https://access.redhat.com/errata/RHSA-2017:2450", }, { category: "workaround", details: "To determine whether your system is impacted, run:\n$ sudo sysctl net.bridge.bridge-nf-call-ip6tables \n$ sudo sysctl net.bridge.bridge-nf-call-iptables\nBoth should be set to 1\n\nTo reset security groups to '1':\n1. Apply the following configuration modification:\n$ sudo sed -i.back -e 's/reapply_sysctl = 0/reapply_sysctl = 1/' /etc/tuned/tuned-main.conf\n\n2. Ensure the modification was successful:\n$ grep reapply_sysctl /etc/tuned/tuned-main.conf\nshould be \"reapply_sysctl = 1\"\n\n3. Check whether tuned is running:\n$ sudo systemctl status tuned\n\n4. Restart tuned to apply the new configuration:\n$ sudo systemctl restart tuned\n\n5. Recheck your security groups and the status of 'reapply_sysctl'.", product_ids: [ "7Server-RH7-RHOS-7.0:openstack-neutron-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-0:2015.1.4-16.1.el7ost.src", "7Server-RH7-RHOS-7.0:openstack-neutron-bigswitch-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-brocade-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-cisco-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-common-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-embrane-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ibm-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-linuxbridge-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-mellanox-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-metaplugin-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-metering-agent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-midonet-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ml2-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-nec-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-nuage-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ofagent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-oneconvergence-nvsd-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-opencontrail-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-openvswitch-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ovsvapp-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-plumgrid-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-sriov-nic-agent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-vmware-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:python-neutron-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:python-neutron-tests-0:2015.1.4-16.1.el7ost.noarch", ], }, ], scores: [ { cvss_v3: { attackComplexity: "HIGH", attackVector: "NETWORK", availabilityImpact: "NONE", baseScore: 5.3, baseSeverity: "MEDIUM", confidentialityImpact: "HIGH", integrityImpact: "NONE", privilegesRequired: "NONE", scope: "UNCHANGED", userInteraction: "REQUIRED", vectorString: "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N", version: "3.0", }, products: [ "7Server-RH7-RHOS-7.0:openstack-neutron-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-0:2015.1.4-16.1.el7ost.src", "7Server-RH7-RHOS-7.0:openstack-neutron-bigswitch-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-brocade-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-cisco-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-common-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-embrane-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ibm-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-linuxbridge-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-mellanox-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-metaplugin-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-metering-agent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-midonet-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ml2-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-nec-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-nuage-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ofagent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-oneconvergence-nvsd-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-opencontrail-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-openvswitch-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-ovsvapp-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-plumgrid-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-sriov-nic-agent-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:openstack-neutron-vmware-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:python-neutron-0:2015.1.4-16.1.el7ost.noarch", "7Server-RH7-RHOS-7.0:python-neutron-tests-0:2015.1.4-16.1.el7ost.noarch", ], }, ], threats: [ { category: "impact", details: "Important", }, ], title: "openstack-neutron: iptables not active after update", }, ], }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.