ubuntu-cve-2018-25091
Vulnerability from osv_ubuntu
Published
2023-10-15 19:15
Modified
2025-09-16 04:53
Summary
Details

urllib3 before 1.24.2 does not remove the authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the authorization header to be exposed to unintended hosts or transmitted in cleartext. NOTE: this issue exists because of an incomplete fix for CVE-2018-20060 (which was case-sensitive).

Severity
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python-pip",
            "binary_version": "1.5.4-1ubuntu4+esm5"
          },
          {
            "binary_name": "python-pip-whl",
            "binary_version": "1.5.4-1ubuntu4+esm5"
          },
          {
            "binary_name": "python3-pip",
            "binary_version": "1.5.4-1ubuntu4+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@1.5.4-1ubuntu4+esm5?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.1-2",
        "1.5.4-1",
        "1.5.4-1ubuntu1",
        "1.5.4-1ubuntu3",
        "1.5.4-1ubuntu4",
        "1.5.4-1ubuntu4+esm1",
        "1.5.4-1ubuntu4+esm2",
        "1.5.4-1ubuntu4+esm3",
        "1.5.4-1ubuntu4+esm4",
        "1.5.4-1ubuntu4+esm5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python-urllib3",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
          },
          {
            "binary_name": "python-urllib3-whl",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
          },
          {
            "binary_name": "python3-urllib3",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@1.7.1-1ubuntu4.1+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6-2",
        "1.7.1-1",
        "1.7.1-1build1",
        "1.7.1-1ubuntu0.1",
        "1.7.1-1ubuntu3",
        "1.7.1-1ubuntu4",
        "1.7.1-1ubuntu4.1",
        "1.7.1-1ubuntu4.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-urllib3",
            "binary_version": "1.13.1-2ubuntu0.16.04.4+esm1"
          },
          {
            "binary_name": "python3-urllib3",
            "binary_version": "1.13.1-2ubuntu0.16.04.4+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@1.13.1-2ubuntu0.16.04.4+esm1?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.13.1-2ubuntu0.16.04.4+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11-1",
        "1.12-1",
        "1.13.1-1",
        "1.13.1-2",
        "1.13.1-2ubuntu0.16.04.1",
        "1.13.1-2ubuntu0.16.04.2",
        "1.13.1-2ubuntu0.16.04.3",
        "1.13.1-2ubuntu0.16.04.4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-pip",
            "binary_version": "8.1.1-2ubuntu0.6+esm6"
          },
          {
            "binary_name": "python-pip-whl",
            "binary_version": "8.1.1-2ubuntu0.6+esm6"
          },
          {
            "binary_name": "python3-pip",
            "binary_version": "8.1.1-2ubuntu0.6+esm6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@8.1.1-2ubuntu0.6+esm6?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.1.1-2ubuntu0.6+esm6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.6-7ubuntu1",
        "1.5.6-7ubuntu2",
        "8.0.2-7",
        "8.0.3-1",
        "8.0.3-2",
        "8.1.0-1",
        "8.1.0-2",
        "8.1.1-1",
        "8.1.1-2",
        "8.1.1-2ubuntu0.1",
        "8.1.1-2ubuntu0.2",
        "8.1.1-2ubuntu0.4",
        "8.1.1-2ubuntu0.6",
        "8.1.1-2ubuntu0.6+esm2",
        "8.1.1-2ubuntu0.6+esm3",
        "8.1.1-2ubuntu0.6+esm4",
        "8.1.1-2ubuntu0.6+esm5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-urllib3",
            "binary_version": "1.22-1ubuntu0.18.04.2+esm1"
          },
          {
            "binary_name": "python3-urllib3",
            "binary_version": "1.22-1ubuntu0.18.04.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@1.22-1ubuntu0.18.04.2+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.22-1ubuntu0.18.04.2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.21.1-1",
        "1.22-1",
        "1.22-1ubuntu0.18.04.1",
        "1.22-1ubuntu0.18.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-pip",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.8+esm2"
          },
          {
            "binary_name": "python-pip-whl",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.8+esm2"
          },
          {
            "binary_name": "python3-pip",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.8+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@9.0.1-2.3~ubuntu1.18.04.8+esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.1-2.3~ubuntu1.18.04.8+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.1-2",
        "9.0.1-2.3~ubuntu1",
        "9.0.1-2.3~ubuntu1.18.04.1",
        "9.0.1-2.3~ubuntu1.18.04.2",
        "9.0.1-2.3~ubuntu1.18.04.3",
        "9.0.1-2.3~ubuntu1.18.04.4",
        "9.0.1-2.3~ubuntu1.18.04.5",
        "9.0.1-2.3~ubuntu1.18.04.5+esm2",
        "9.0.1-2.3~ubuntu1.18.04.5+esm3",
        "9.0.1-2.3~ubuntu1.18.04.6",
        "9.0.1-2.3~ubuntu1.18.04.6+esm1",
        "9.0.1-2.3~ubuntu1.18.04.7",
        "9.0.1-2.3~ubuntu1.18.04.7+esm1",
        "9.0.1-2.3~ubuntu1.18.04.8",
        "9.0.1-2.3~ubuntu1.18.04.8+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "urllib3 before 1.24.2 does not remove the authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the authorization header to be exposed to unintended hosts or transmitted in cleartext. NOTE: this issue exists because of an incomplete fix for CVE-2018-20060 (which was case-sensitive).",
  "id": "UBUNTU-CVE-2018-25091",
  "modified": "2025-09-16T04:53:30Z",
  "published": "2023-10-15T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-25091"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/urllib3/urllib3/issues/1510"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/urllib3/urllib3/compare/1.24.1...1.24.2"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/urllib3/urllib3/commit/adb358f8e06865406d1f05e581a16cbea2136fbc"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6473-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6473-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-25091"
    }
  ],
  "related": [
    "USN-6473-1",
    "USN-6473-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-25091"
  ]
}



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Nomenclature

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