ubuntu-cve-2018-16843
Vulnerability from osv_ubuntu
Published
2018-11-06 00:00
Modified
2025-09-08 16:45
Summary
Details

nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive memory consumption. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "nginx",
            "binary_version": "1.10.3-0ubuntu0.16.04.3"
          },
          {
            "binary_name": "nginx-common",
            "binary_version": "1.10.3-0ubuntu0.16.04.3"
          },
          {
            "binary_name": "nginx-core",
            "binary_version": "1.10.3-0ubuntu0.16.04.3"
          },
          {
            "binary_name": "nginx-extras",
            "binary_version": "1.10.3-0ubuntu0.16.04.3"
          },
          {
            "binary_name": "nginx-full",
            "binary_version": "1.10.3-0ubuntu0.16.04.3"
          },
          {
            "binary_name": "nginx-light",
            "binary_version": "1.10.3-0ubuntu0.16.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "nginx",
        "purl": "pkg:deb/ubuntu/nginx@1.10.3-0ubuntu0.16.04.3?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.10.3-0ubuntu0.16.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9.3-1ubuntu1",
        "1.9.6-2ubuntu1",
        "1.9.6-2ubuntu2",
        "1.9.9-0ubuntu1",
        "1.9.9-1ubuntu1",
        "1.9.10-0ubuntu1",
        "1.9.10-1ubuntu1",
        "1.9.11-0ubuntu1",
        "1.9.11-0ubuntu2",
        "1.9.12-0ubuntu1",
        "1.9.13-0ubuntu1",
        "1.9.14-0ubuntu1",
        "1.9.15-0ubuntu1",
        "1.10.0-0ubuntu0.16.04.1",
        "1.10.0-0ubuntu0.16.04.2",
        "1.10.0-0ubuntu0.16.04.3",
        "1.10.0-0ubuntu0.16.04.4",
        "1.10.3-0ubuntu0.16.04.1",
        "1.10.3-0ubuntu0.16.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnginx-mod-http-auth-pam",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-cache-purge",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-dav-ext",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-echo",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-fancyindex",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-geoip",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-headers-more-filter",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-image-filter",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-lua",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-ndk",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-perl",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-subs-filter",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-uploadprogress",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-upstream-fair",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-xslt-filter",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-mail",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-nchan",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-rtmp",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-stream",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "nginx",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "nginx-common",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "nginx-core",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "nginx-extras",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "nginx-full",
            "binary_version": "1.14.0-0ubuntu1.2"
          },
          {
            "binary_name": "nginx-light",
            "binary_version": "1.14.0-0ubuntu1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "nginx",
        "purl": "pkg:deb/ubuntu/nginx@1.14.0-0ubuntu1.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.14.0-0ubuntu1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.12.1-0ubuntu2",
        "1.13.6-2ubuntu1",
        "1.13.6-2ubuntu2",
        "1.13.10-1ubuntu1",
        "1.13.12-0ubuntu1",
        "1.14.0-0ubuntu1",
        "1.14.0-0ubuntu1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive memory consumption. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the \u0027http2\u0027 option of the \u0027listen\u0027 directive is used in a configuration file.",
  "id": "UBUNTU-CVE-2018-16843",
  "modified": "2025-09-08T16:45:01Z",
  "published": "2018-11-06T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-16843"
    },
    {
      "type": "REPORT",
      "url": "http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3812-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-16843"
    }
  ],
  "related": [
    "USN-3812-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-16843"
  ]
}



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