{
  "cveId": "CVE-2019-9515",
  "url": "https://patchblox.com/security/cve/CVE-2019-9515",
  "summary": "CVE-2019-9515 is fixed in 19 products on 1 platform, first by libnetty-java 1:4.1.7-4ubuntu0.1\u002Besm1, released August 12, 2019. It is not reported as exploited. Patch Radar priority: High.",
  "title": "python3-twisted: Some HTTP/2 implementations are vulnerable to a settings flood, potentiallyleading to a denial of service",
  "description": "Some HTTP/2 implementations are vulnerable to a settings flood, potentiallyleading to a denial of service. The attacker sends a stream of SETTINGSframes to the peer. Since the RFC requires that the peer reply with oneacknowledgement per SETTINGS frame, an empty SETTINGS frame is almostequivalent in behavior to a ping. Depending on how efficiently this data isqueued, this can consume excess CPU, memory, or both.",
  "published": "2019-08-12T17:00:00Z",
  "severity": "Medium",
  "cvss": 7.5,
  "epss": 0.87286,
  "epssPercentile": 0.99754,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libnetty-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:4.1.7-4ubuntu0.1\u002Besm1",
      "fix": "libnetty-java 1:4.1.7-4ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libnetty-java-1-4.1.7-4ubuntu0.1-esm1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "RHEL 8",
      "fixedVersion": "1:10.16.3-2.module\u002Bel8.0.0\u002B4214\u002B49953fda",
      "fix": "RHSA-2019:2925",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "ol 8",
      "fixedVersion": "1:10.14.1-1.module\u002Bel8.0.0\u002B5349\u002B4d6b561f",
      "fix": "ELSA-2019-2925",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-devel",
      "release": "RHEL 8",
      "fixedVersion": "1:10.16.3-2.module\u002Bel8.0.0\u002B4214\u002B49953fda",
      "fix": "RHSA-2019:2925",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-devel",
      "release": "ol 8",
      "fixedVersion": "1:10.14.1-1.module\u002Bel8.0.0\u002B5349\u002B4d6b561f",
      "fix": "ELSA-2019-2925",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-docs",
      "release": "RHEL 8",
      "fixedVersion": "1:10.16.3-2.module\u002Bel8.0.0\u002B4214\u002B49953fda",
      "fix": "RHSA-2019:2925",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-docs",
      "release": "ol 8",
      "fixedVersion": "1:10.14.1-1.module\u002Bel8.0.0\u002B5349\u002B4d6b561f",
      "fix": "ELSA-2019-2925",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-nodemon",
      "release": "RHEL 8",
      "fixedVersion": "0:1.18.3-1.module\u002Bel8\u002B2632\u002B6c5111ed",
      "fix": "RHSA-2019:2925",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-nodemon",
      "release": "ol 8",
      "fixedVersion": "0:1.18.3-1.module\u002Bel8.0.0\u002B5349\u002B4d6b561f",
      "fix": "ELSA-2019-2925",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-packaging",
      "release": "RHEL 8",
      "fixedVersion": "0:17-3.module\u002Bel8\u002B2873\u002Baa7dfd9a",
      "fix": "RHSA-2019:2925",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-packaging",
      "release": "ol 8",
      "fixedVersion": "0:17-3.module\u002Bel8.0.0\u002B5349\u002B4d6b561f",
      "fix": "ELSA-2019-2925",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "npm",
      "release": "RHEL 8",
      "fixedVersion": "1:6.9.0-1.10.16.3.2.module\u002Bel8.0.0\u002B4214\u002B49953fda",
      "fix": "RHSA-2019:2925",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "npm",
      "release": "ol 8",
      "fixedVersion": "1:6.4.1-1.10.14.1.1.module\u002Bel8.0.0\u002B5349\u002B4d6b561f",
      "fix": "ELSA-2019-2925",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-2925",
      "released": "2019-09-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python-twisted 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python-twisted 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-bin",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python-twisted-bin 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-bin-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-bin",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python-twisted-bin 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-bin-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-conch",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:17.9.0-2ubuntu0.1",
      "fix": "python-twisted-conch 1:17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-conch-1-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-conch",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:18.9.0-6ubuntu1",
      "fix": "python-twisted-conch 1:18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-conch-1-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-core",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python-twisted-core 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-core-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-core",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python-twisted-core 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-core-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-mail",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python-twisted-mail 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-mail-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-mail",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python-twisted-mail 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-mail-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-names",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python-twisted-names 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-names-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-names",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python-twisted-names 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-names-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-news",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python-twisted-news 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-news-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-news",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python-twisted-news 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-news-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-runner",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python-twisted-runner 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-runner-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-runner",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "fix": "python-twisted-runner 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-runner-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-web",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python-twisted-web 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-web-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-web",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "fix": "python-twisted-web 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-web-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-words",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python-twisted-words 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python-twisted-words-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python-twisted-words",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python-twisted-words 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python-twisted-words-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-twisted",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python3-twisted 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python3-twisted-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-twisted",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python3-twisted 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python3-twisted-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-twisted",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python3-twisted 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-python3-twisted-18.9.0-6ubuntu1",
      "released": "2019-08-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-twisted",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python3-twisted 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-python3-twisted-18.9.0-6ubuntu1",
      "released": "2019-08-13T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-twisted-bin",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "17.9.0-2ubuntu0.1",
      "fix": "python3-twisted-bin 17.9.0-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-python3-twisted-bin-17.9.0-2ubuntu0.1",
      "released": "2020-03-12T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-twisted-bin",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "18.9.0-6ubuntu1",
      "fix": "python3-twisted-bin 18.9.0-6ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-python3-twisted-bin-18.9.0-6ubuntu1",
      "released": "2019-08-12T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}