rhsa-2018_2857
Vulnerability from csaf_redhat
Published
2018-10-02 19:01
Modified
2024-11-14 23:45
Summary
Red Hat Security Advisory: Red Hat OpenStack Platform 8 director security and bug fix update

Notes

Topic
An update for instack-undercloud and openstack-tripleo-heat-templates is now available for Red Hat OpenStack Platform 8.0 (Liberty) director. 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
memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load. instack-undercloud provides a collection of scripts and elements that can be used to install an OpenStack undercloud (using python-instack). openstack-tripleo-heat-templates is a collection of OpenStack Orchestration templates and tools (codename heat), which can be used to help deploy OpenStack. Security Fix(es): * memcached: UDP server support allows spoofed traffic amplification DoS (CVE-2018-1000115) 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 cause pacemaker-managed glance-fs deployments to fail. Now the glance-fs resource is created from a single node of the overcloud in a way that eliminates the race condition and the resultant deployment failures. (BZ#1418617) * Prior to this update, the source IP address for cold migration and resize was determined by the default gateway configured on the source compute node. Now the my_ip option is explicitly set to the internal_api network IP in nova.conf, ensuring the correct network is used for this traffic. (BZ#1552855)
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 instack-undercloud and openstack-tripleo-heat-templates is now available for Red Hat OpenStack Platform 8.0 (Liberty) director.\n\nRed 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.",
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        "text": "memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.\n\ninstack-undercloud provides a collection of scripts and elements that can be used to install an OpenStack undercloud (using python-instack).\n\nopenstack-tripleo-heat-templates is a collection of OpenStack Orchestration templates and tools (codename heat), which can be used to help deploy OpenStack.\n\nSecurity Fix(es):\n\n* memcached: UDP server support allows spoofed traffic amplification DoS (CVE-2018-1000115)\n\nFor 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.\n\nBug Fix(es):\n\n* This update fixes a race condition that could cause pacemaker-managed glance-fs deployments to fail.\n\nNow the glance-fs resource is created from a single node of the overcloud in a way that eliminates the race condition and the resultant deployment failures. (BZ#1418617)\n\n* Prior to this update, the source IP address for cold migration and resize was determined by the default gateway configured on the source compute node. \n\nNow the my_ip option is explicitly set to the internal_api network IP in nova.conf, ensuring the correct network is used for this traffic. (BZ#1552855)",
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  "vulnerabilities": [
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      "ids": [
        {
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          "text": "1551182"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "It was discovered that the memcached connections using UDP transport protocol can be abused for efficient traffic amplification distributed denial of service (DDoS) attacks. A remote attacker could send a malicious UDP request using a spoofed source IP address of a target system to memcached, causing it to send a significantly larger response to the target.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "memcached: UDP server support allows spoofed traffic amplification DoS",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat is aware of traffic amplification distributed denial of service (DDoS) attacks that take advantage of the insecurely configured memcached servers reachable from the public Internet. The default configuration of memcached as shipped in Red Hat products makes it possible to abuse them for these DDoS attacks if memcached is exposed to connections from the public Internet. Refer to the Red Hat Knowledgebase article 3369081 for instructions on how to properly secure memcached installations to prevent them from being used in the attack.\n\nhttps://access.redhat.com/solutions/3369081",
          "title": "Statement"
        },
        {
          "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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          "url": "https://access.redhat.com/security/cve/CVE-2018-1000115"
        },
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          "summary": "RHBZ#1551182",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1551182"
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2018-1000115",
          "url": "https://www.cve.org/CVERecord?id=CVE-2018-1000115"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000115",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000115"
        }
      ],
      "release_date": "2018-03-02T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2018-10-02T19:01:42+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": [
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            "7Server-RH7-RHOS-8.0-Director:instack-undercloud-0:2.2.7-13.el7ost.src",
            "7Server-RH7-RHOS-8.0-Director:openstack-tripleo-heat-templates-0:0.8.14-42.el7ost.noarch",
            "7Server-RH7-RHOS-8.0-Director:openstack-tripleo-heat-templates-0:0.8.14-42.el7ost.src",
            "7Server-RH7-RHOS-8.0-Director:openstack-tripleo-heat-templates-kilo-0:0.8.14-42.el7ost.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2018:2857"
        },
        {
          "category": "workaround",
          "details": "Please refer to the Red Hat Knowledgebase article 3369081 for instructions on how to properly secure memcached installations to prevent them from being used in an attack.\n\nhttps://access.redhat.com/solutions/3369081",
          "product_ids": [
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            "7Server-RH7-RHOS-8.0-Director:instack-undercloud-0:2.2.7-13.el7ost.src",
            "7Server-RH7-RHOS-8.0-Director:openstack-tripleo-heat-templates-0:0.8.14-42.el7ost.noarch",
            "7Server-RH7-RHOS-8.0-Director:openstack-tripleo-heat-templates-0:0.8.14-42.el7ost.src",
            "7Server-RH7-RHOS-8.0-Director:openstack-tripleo-heat-templates-kilo-0:0.8.14-42.el7ost.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          },
          "products": [
            "7Server-RH7-RHOS-8.0-Director:instack-undercloud-0:2.2.7-13.el7ost.noarch",
            "7Server-RH7-RHOS-8.0-Director:instack-undercloud-0:2.2.7-13.el7ost.src",
            "7Server-RH7-RHOS-8.0-Director:openstack-tripleo-heat-templates-0:0.8.14-42.el7ost.noarch",
            "7Server-RH7-RHOS-8.0-Director:openstack-tripleo-heat-templates-0:0.8.14-42.el7ost.src",
            "7Server-RH7-RHOS-8.0-Director:openstack-tripleo-heat-templates-kilo-0:0.8.14-42.el7ost.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "memcached: UDP server support allows spoofed traffic amplification DoS"
    }
  ]
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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