RHBA-2018:3683

Vulnerability from csaf_redhat - Published: 2018-11-27 13:19 - Updated: 2025-11-21 17:21
Summary
Red Hat Bug Fix Advisory: Important: redhat-virtualization-host bug fix and enhancement update

Notes

Topic
Updated redhat-virtualization-host packages that fix several bugs and add various enhancements are now available.
Details
The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
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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        "name": "Improper Input Validation"
      },
      "discovery_date": "2018-09-21T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1632522"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An issue was discovered in Open vSwitch (OvS), 2.4.x through 2.4.1, 2.5.x through 2.5.5, 2.6.x through 2.6.3, 2.7.x through 2.7.6, 2.8.x through 2.8.4, and2.9.x through 2.9.2, affecting the parse_group_prop_ntr_selection_method in lib/ofp-util.c. On controllers with the OpenFlow 1.5 decoder enabled, a specially crafted group update can cause an assertion failure, potentially leading to a Denial of Service condition.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "openvswitch: Mishandle of group mods in lib/ofp-util.c:parse_group_prop_ntr_selection_method() allows for assertion failure",
          "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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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2018-17204"
        },
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          "category": "external",
          "summary": "RHBZ#1632522",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1632522"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2018-17204",
          "url": "https://www.cve.org/CVERecord?id=CVE-2018-17204"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-17204",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17204"
        }
      ],
      "release_date": "2018-09-25T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2018-11-27T13:19:18+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/2974891",
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          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHBA-2018:3683"
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      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 2.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          },
          "products": [
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "openvswitch: Mishandle of group mods in lib/ofp-util.c:parse_group_prop_ntr_selection_method() allows for assertion failure"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.