csaf_redhat - rhsa-2017:2447

rhsa-2017:2447

Vulnerability from csaf_redhat

Published

2017-08-08 22:31

Modified

2024-11-14 23:35

Summary

Red Hat Security Advisory: openstack-neutron security update

Notes

Topic

An update for openstack-neutron 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 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-arptables, 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).

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": [
    {
      "acknowledgments": [
        {
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            "Paul Needle"
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          "organization": "Red Hat",
          "summary": "This issue was discovered by Red Hat."
        }
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      "cve": "CVE-2017-7543",
      "cwe": {
        "id": "CWE-362",
        "name": "Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)"
      },
      "discovery_date": "2017-07-20T00:00:00+00:00",
      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "1473792"
        }
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      "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\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-9.0:openstack-neutron-openvswitch-1:8.3.0-11.1.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-neutron-rpc-server-1:8.3.0-11.1.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:openstack-neutron-sriov-nic-agent-1:8.3.0-11.1.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:python-neutron-1:8.3.0-11.1.el7ost.noarch",
          "7Server-RH7-RHOS-9.0:python-neutron-tests-1:8.3.0-11.1.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": "2017-08-08T22:31:02+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-neutron-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-1:8.3.0-11.1.el7ost.src",
            "7Server-RH7-RHOS-9.0:openstack-neutron-bgp-dragent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-common-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-linuxbridge-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-macvtap-agent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-metering-agent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-ml2-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-openvswitch-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-rpc-server-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-sriov-nic-agent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-neutron-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-neutron-tests-1:8.3.0-11.1.el7ost.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2017:2447"
        },
        {
          "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 \u00271\u0027:\n1. Apply the following configuration modification:\n$ sudo sed -i.back -e \u0027s/reapply_sysctl = 0/reapply_sysctl = 1/\u0027 /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 \u0027reapply_sysctl\u0027.",
          "product_ids": [
            "7Server-RH7-RHOS-9.0:openstack-neutron-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-1:8.3.0-11.1.el7ost.src",
            "7Server-RH7-RHOS-9.0:openstack-neutron-bgp-dragent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-common-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-linuxbridge-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-macvtap-agent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-metering-agent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-ml2-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-openvswitch-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-rpc-server-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-sriov-nic-agent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-neutron-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-neutron-tests-1:8.3.0-11.1.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-9.0:openstack-neutron-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-1:8.3.0-11.1.el7ost.src",
            "7Server-RH7-RHOS-9.0:openstack-neutron-bgp-dragent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-common-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-linuxbridge-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-macvtap-agent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-metering-agent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-ml2-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-openvswitch-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-rpc-server-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:openstack-neutron-sriov-nic-agent-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-neutron-1:8.3.0-11.1.el7ost.noarch",
            "7Server-RH7-RHOS-9.0:python-neutron-tests-1:8.3.0-11.1.el7ost.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "openstack-neutron: iptables not active after update"
    }
  ]
}

cve-2017-7543

Vulnerability from cvelistv5

Published

2018-07-26 14:00

Modified

2024-08-05 16:04

Severity ?

5.3 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Summary

A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, 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.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543	x_refsource_CONFIRM
	https://access.redhat.com/errata/RHSA-2017:2447	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2017:2451	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2017:2450	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2017:2448	vendor-advisory, x_refsource_REDHAT
	http://www.securityfocus.com/bid/100237	vdb-entry, x_refsource_BID
	https://access.redhat.com/errata/RHSA-2017:2452	vendor-advisory, x_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2017:2449	vendor-advisory, x_refsource_REDHAT

Impacted products

Vendor

Product

Version

▼

Red Hat

openstack-neutron

Version: openstack-neutron-10.0.2-1.1
Version: openstack-neutron-8.3.0-11.1
Version: openstack-neutron-9.3.1-2.1
Version: openstack-neutron-7.2.0-12.1

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-05T16:04:11.998Z",
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Sightings

Author	Source	Type	Date

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.

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