usn-4235-2
Vulnerability from osv_ubuntu
Published
2020-01-15 18:22
Modified
2026-02-10 04:41
Summary
nginx vulnerability
Details

USN-4235-1 fixed a vulnerability in nginx. This update provides the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Bert JW Regeer and Francisco Oca Gonzalez discovered that nginx incorrectly handled certain error_page configurations. A remote attacker could possibly use this issue to perform HTTP request smuggling attacks and access resources contrary to expectations.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-20372",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "nginx",
            "binary_version": "1.4.6-1ubuntu3.9+esm1"
          },
          {
            "binary_name": "nginx-common",
            "binary_version": "1.4.6-1ubuntu3.9+esm1"
          },
          {
            "binary_name": "nginx-core",
            "binary_version": "1.4.6-1ubuntu3.9+esm1"
          },
          {
            "binary_name": "nginx-extras",
            "binary_version": "1.4.6-1ubuntu3.9+esm1"
          },
          {
            "binary_name": "nginx-full",
            "binary_version": "1.4.6-1ubuntu3.9+esm1"
          },
          {
            "binary_name": "nginx-light",
            "binary_version": "1.4.6-1ubuntu3.9+esm1"
          },
          {
            "binary_name": "nginx-naxsi",
            "binary_version": "1.4.6-1ubuntu3.9+esm1"
          },
          {
            "binary_name": "nginx-naxsi-ui",
            "binary_version": "1.4.6-1ubuntu3.9+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "nginx",
        "purl": "pkg:deb/ubuntu/nginx@1.4.6-1ubuntu3.9+esm1?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.6-1ubuntu3.9+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.1-3ubuntu1",
        "1.4.3-2ubuntu1",
        "1.4.4-1ubuntu1",
        "1.4.4-2ubuntu1",
        "1.4.4-4ubuntu1",
        "1.4.5-1ubuntu1",
        "1.4.6-1ubuntu2",
        "1.4.6-1ubuntu3",
        "1.4.6-1ubuntu3.1",
        "1.4.6-1ubuntu3.2",
        "1.4.6-1ubuntu3.3",
        "1.4.6-1ubuntu3.4",
        "1.4.6-1ubuntu3.5",
        "1.4.6-1ubuntu3.6",
        "1.4.6-1ubuntu3.7",
        "1.4.6-1ubuntu3.8",
        "1.4.6-1ubuntu3.9"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-4235-1 fixed a vulnerability in nginx. This update provides\nthe corresponding update for Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n Bert JW Regeer and Francisco Oca Gonzalez discovered that nginx incorrectly\n handled certain error_page configurations. A remote attacker could possibly\n use this issue to perform HTTP request smuggling attacks and access\n resources contrary to expectations.\n",
  "id": "USN-4235-2",
  "modified": "2026-02-10T04:41:45Z",
  "published": "2020-01-15T18:22:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4235-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-20372"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "nginx vulnerability",
  "upstream": [
    "UBUNTU-CVE-2019-20372"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.