{
  "cveId": "CVE-2020-27827",
  "url": "https://patchblox.com/security/cve/CVE-2020-27827",
  "summary": "CVE-2020-27827 is fixed in 18 products on 1 platform, first by openvswitch-common 2.9.7-0ubuntu0.18.04.2, released January 12, 2021. It is not reported as exploited. Patch Radar priority: High.",
  "title": "openvswitch-common: A flaw was found in multiple versions of OpenvSwitch",
  "description": "A flaw was found in multiple versions of OpenvSwitch. Specially craftedLLDP packets can cause memory to be lost when allocating data to handlespecific optional TLVs, potentially causing a denial of service. Thehighest threat from this vulnerability is to system availability.",
  "published": "2021-01-12T16:00:00Z",
  "severity": "Medium",
  "cvss": 7.5,
  "epss": 0.03235,
  "epssPercentile": 0.88352,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "lldpd",
      "release": "RHEL 9",
      "fixedVersion": "0:1.0.18-4.el9",
      "fix": "RHSA-2024:9158",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2024-9158",
      "released": "2024-11-12T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lldpd",
      "release": "almalinux 9",
      "fixedVersion": "1.0.18-4.el9",
      "fix": "ALSA-2024:9158",
      "url": "https://patchblox.com/security/fix/linux/alsa-2024-9158",
      "released": "2024-11-12T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lldpd",
      "release": "ol 9",
      "fixedVersion": "0:1.0.18-4.el9",
      "fix": "ELSA-2024-9158",
      "url": "https://patchblox.com/security/fix/linux/elsa-2024-9158",
      "released": "2024-11-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lldpd",
      "release": "rocky 9",
      "fixedVersion": "0:1.0.18-4.el9",
      "fix": "RLSA-2024:9158",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2024-9158",
      "released": "2025-03-17T20:16:49Z"
    },
    {
      "platform": "linux",
      "product": "lldpd-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:1.0.18-4.el9",
      "fix": "RHSA-2024:9158",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2024-9158",
      "released": "2024-11-12T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lldpd-devel",
      "release": "almalinux 9",
      "fixedVersion": "1.0.18-4.el9",
      "fix": "ALSA-2024:9158",
      "url": "https://patchblox.com/security/fix/linux/alsa-2024-9158",
      "released": "2024-11-12T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lldpd-devel",
      "release": "ol 9",
      "fixedVersion": "0:1.0.18-4.el9",
      "fix": "ELSA-2024-9158",
      "url": "https://patchblox.com/security/fix/linux/elsa-2024-9158",
      "released": "2024-11-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.9.7-0ubuntu0.18.04.2",
      "fix": "openvswitch-common 2.9.7-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-openvswitch-common-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-common",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.13.1-0ubuntu0.20.04.3",
      "fix": "openvswitch-common 2.13.1-0ubuntu0.20.04.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-openvswitch-common-2.13.1-0ubuntu0.20.04.3",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-common",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.15.0-0ubuntu1",
      "fix": "openvswitch-common 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-openvswitch-common-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-common",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.15.0-0ubuntu1",
      "fix": "openvswitch-common 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-openvswitch-common-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-ipsec",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.15.0-0ubuntu1",
      "fix": "openvswitch-ipsec 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-openvswitch-ipsec-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-ipsec",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.15.0-0ubuntu1",
      "fix": "openvswitch-ipsec 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-openvswitch-ipsec-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-pki",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.9.7-0ubuntu0.18.04.2",
      "fix": "openvswitch-pki 2.9.7-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-openvswitch-pki-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-pki",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.13.1-0ubuntu0.20.04.3",
      "fix": "openvswitch-pki 2.13.1-0ubuntu0.20.04.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-openvswitch-pki-2.13.1-0ubuntu0.20.04.3",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-pki",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.15.0-0ubuntu1",
      "fix": "openvswitch-pki 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-openvswitch-pki-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-pki",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.15.0-0ubuntu1",
      "fix": "openvswitch-pki 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-openvswitch-pki-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-source",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.13.1-0ubuntu0.20.04.3",
      "fix": "openvswitch-source 2.13.1-0ubuntu0.20.04.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-openvswitch-source-2.13.1-0ubuntu0.20.04.3",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-source",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.15.0-0ubuntu1",
      "fix": "openvswitch-source 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-openvswitch-source-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-source",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2.15.0-0ubuntu1",
      "fix": "openvswitch-source 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-openvswitch-source-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-switch",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.9.7-0ubuntu0.18.04.2",
      "fix": "openvswitch-switch 2.9.7-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-openvswitch-switch-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-switch",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.13.1-0ubuntu0.20.04.3",
      "fix": "openvswitch-switch 2.13.1-0ubuntu0.20.04.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-openvswitch-switch-2.13.1-0ubuntu0.20.04.3",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-switch",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2.15.0-0ubuntu1",
      "fix": "openvswitch-switch 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-openvswitch-switch-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
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      "product": "openvswitch-switch",
      "release": "Ubuntu 25.04 (plucky)",
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      "fix": "openvswitch-switch 2.15.0-0ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-openvswitch-switch-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-switch-dpdk",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
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      "fix": "openvswitch-switch-dpdk 2.9.7-0ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-openvswitch-switch-dpdk-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-switch-dpdk",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-openvswitch-switch-dpdk-2.13.1-0ubuntu0.20.04.3",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-switch-dpdk",
      "release": "Ubuntu 24.10 (oracular)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-openvswitch-switch-dpdk-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
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      "product": "openvswitch-switch-dpdk",
      "release": "Ubuntu 25.04 (plucky)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-openvswitch-switch-dpdk-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
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      "released": "2021-01-13T00:00:00Z"
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    {
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-openvswitch-testcontroller-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
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      "product": "openvswitch-testcontroller",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-openvswitch-testcontroller-2.13.1-0ubuntu0.20.04.3",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-testcontroller",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-openvswitch-testcontroller-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-openvswitch-testcontroller-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-openvswitch-vtep-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openvswitch-vtep",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-openvswitch-vtep-2.13.1-0ubuntu0.20.04.3",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-openvswitch-vtep-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-openvswitch-vtep-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-ovn-central-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
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      "release": "Ubuntu 18.04.6 LTS (bionic)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-ovn-common-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
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      "release": "Ubuntu 18.04.6 LTS (bionic)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-ovn-controller-vtep-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-ovn-docker-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-ovn-host-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-openvswitch-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
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      "release": "Ubuntu 18.04.6 LTS (bionic)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python3-openvswitch-2.9.7-0ubuntu0.18.04.2",
      "released": "2021-01-12T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-openvswitch",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python3-openvswitch-2.13.1-0ubuntu0.20.04.3",
      "released": "2021-01-12T16:00:00Z"
    },
    {
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      "product": "python3-openvswitch",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-python3-openvswitch-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    },
    {
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      "product": "python3-openvswitch",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-python3-openvswitch-2.15.0-0ubuntu1",
      "released": "2021-01-13T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}