Vulnerability-Lookup

usn-7084-2

Vulnerability from osv_ubuntu

Published

2024-10-30 11:55

Modified

2026-06-25 10:46

Summary

python-pip vulnerability

Details

USN-7084-1 fixed vulnerability in urllib3. This update provides the corresponding update for the urllib3 module bundled into pip.

Original advisory details:

It was discovered that urllib3 didn't strip HTTP Proxy-Authorization header on cross-origin redirects. A remote attacker could possibly use this issue to obtain sensitive information.

References

URL

Type

	https://ubuntu.com/security/notices/USN-7084-2	ADVISORY
	https://ubuntu.com/security/CVE-2024-37891	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-37891",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-pip",
            "binary_version": "8.1.1-2ubuntu0.6+esm10"
          },
          {
            "binary_name": "python-pip-whl",
            "binary_version": "8.1.1-2ubuntu0.6+esm10"
          },
          {
            "binary_name": "python3-pip",
            "binary_version": "8.1.1-2ubuntu0.6+esm10"
          }
        ]
      },
      "package": {
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        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@8.1.1-2ubuntu0.6+esm10?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
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            },
            {
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            }
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        }
      ],
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        "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",
        "8.1.1-2ubuntu0.6+esm6",
        "8.1.1-2ubuntu0.6+esm8"
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    },
    {
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        "cves_map": {
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            {
              "id": "CVE-2024-37891",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "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+esm6"
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      },
      "ranges": [
        {
          "events": [
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              "introduced": "0"
            },
            {
              "fixed": "9.0.1-2.3~ubuntu1.18.04.8+esm6"
            }
          ],
          "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",
        "9.0.1-2.3~ubuntu1.18.04.8+esm2",
        "9.0.1-2.3~ubuntu1.18.04.8+esm4"
      ]
    },
    {
      "database_specific": {
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            {
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                {
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                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python-pip-whl",
            "binary_version": "20.0.2-5ubuntu1.11"
          },
          {
            "binary_name": "python3-pip",
            "binary_version": "20.0.2-5ubuntu1.11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "python-pip",
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      },
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      ],
      "versions": [
        "18.1-5",
        "18.1-5build1",
        "18.1-5ubuntu1",
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        "20.0.2-5",
        "20.0.2-5ubuntu1",
        "20.0.2-5ubuntu1.1",
        "20.0.2-5ubuntu1.3",
        "20.0.2-5ubuntu1.4",
        "20.0.2-5ubuntu1.5",
        "20.0.2-5ubuntu1.6",
        "20.0.2-5ubuntu1.7",
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        "20.0.2-5ubuntu1.9",
        "20.0.2-5ubuntu1.10"
      ]
    },
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      "database_specific": {
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                },
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
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                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-pip",
            "binary_version": "22.0.2+dfsg-1ubuntu0.5"
          },
          {
            "binary_name": "python3-pip-whl",
            "binary_version": "22.0.2+dfsg-1ubuntu0.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@22.0.2+dfsg-1ubuntu0.5?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
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              "introduced": "0"
            },
            {
              "fixed": "22.0.2+dfsg-1ubuntu0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "20.3.4-4",
        "21.3.1+dfsg-3",
        "22.0.2+dfsg-1",
        "22.0.2+dfsg-1ubuntu0.1",
        "22.0.2+dfsg-1ubuntu0.2",
        "22.0.2+dfsg-1ubuntu0.3",
        "22.0.2+dfsg-1ubuntu0.4"
      ]
    },
    {
      "database_specific": {
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            {
              "id": "CVE-2024-37891",
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                  "type": "CVSS_V3"
                },
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-pip",
            "binary_version": "24.0+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "python3-pip-whl",
            "binary_version": "24.0+dfsg-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@24.0+dfsg-1ubuntu1.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "23.2+dfsg-1",
        "23.3+dfsg-1",
        "24.0+dfsg-1",
        "24.0+dfsg-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-7084-1 fixed vulnerability in urllib3. This update provides the\ncorresponding update for the urllib3 module bundled into pip.\n\nOriginal advisory details:\n\n It was discovered that urllib3 didn\u0027t strip HTTP Proxy-Authorization\n header on cross-origin redirects. A remote attacker could possibly use\n this issue to obtain sensitive information.\n",
  "id": "USN-7084-2",
  "modified": "2026-06-25T10:46:31Z",
  "published": "2024-10-30T11:55:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7084-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-37891"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "python-pip vulnerability",
  "upstream": [
    "UBUNTU-CVE-2024-37891"
  ]
}

ubuntu-cve-2024-37891

Vulnerability from osv_ubuntu

Published

2024-06-17 20:15

Modified

2026-01-08 05:13

Summary

Details

urllib3 is a user-friendly HTTP client library for Python. When using urllib3's proxy support with ProxyManager, the Proxy-Authorization header is only sent to the configured proxy, as expected. However, when sending HTTP requests without using urllib3's proxy support, it's possible to accidentally configure the Proxy-Authorization header even though it won't have any effect as the request is not using a forwarding proxy or a tunneling proxy. In those cases, urllib3 doesn't treat the Proxy-Authorization HTTP header as one carrying authentication material and thus doesn't strip the header on cross-origin redirects. Because this is a highly unlikely scenario, we believe the severity of this vulnerability is low for almost all users. Out of an abundance of caution urllib3 will automatically strip the Proxy-Authorization header during cross-origin redirects to avoid the small chance that users are doing this on accident. Users should use urllib3's proxy support or disable automatic redirects to achieve safe processing of the Proxy-Authorization header, but we still decided to strip the header by default in order to further protect users who aren't using the correct approach. We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited: 1. Setting the Proxy-Authorization header without using urllib3's built-in proxy support. 2. Not disabling HTTP redirects. 3. Either not using an HTTPS origin server or for the proxy or target origin to redirect to a malicious origin. Users are advised to update to either version 1.26.19 or version 2.2.2. Users unable to upgrade may use the Proxy-Authorization header with urllib3's ProxyManager, disable HTTP redirects using redirects=False when sending requests, or not user the Proxy-Authorization header as mitigations.

Severity

4.4 (Medium)


                    
                      CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

6.5 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2024-37891	REPORT
	https://www.cve.org/CVERecord?id=CVE-2024-37891	REPORT
	https://github.com/urllib3/urllib3/security/advis…	REPORT
	https://ubuntu.com/security/notices/USN-7084-1	ADVISORY
	https://ubuntu.com/security/notices/USN-7084-2	ADVISORY

JSON

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"
          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
      "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"
      },
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            }
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          "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"
      ]
    },
    {
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          {
            "binary_name": "python-urllib3",
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          },
          {
            "binary_name": "python3-urllib3",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
          }
        ],
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      },
      "package": {
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      },
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        }
      ],
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        "1.7.1-1ubuntu4.1",
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      ]
    },
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            "binary_name": "python-urllib3",
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          },
          {
            "binary_name": "python3-urllib3",
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          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
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        "purl": "pkg:deb/ubuntu/python-urllib3@1.13.1-2ubuntu0.16.04.4+esm2?arch=source\u0026distro=esm-infra/xenial"
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          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11-1",
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          ],
          "type": "ECOSYSTEM"
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      ],
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        "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",
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        "8.1.1-2ubuntu0.6+esm8"
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    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
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            "binary_name": "python-urllib3",
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          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@1.22-1ubuntu0.18.04.2+esm2?arch=source\u0026distro=esm-infra/bionic"
      },
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      ],
      "versions": [
        "1.21.1-1",
        "1.22-1",
        "1.22-1ubuntu0.18.04.1",
        "1.22-1ubuntu0.18.04.2",
        "1.22-1ubuntu0.18.04.2+esm1"
      ]
    },
    {
      "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+esm6"
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          {
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          {
            "binary_name": "python3-pip",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.8+esm6"
          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
      "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+esm6?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.1-2.3~ubuntu1.18.04.8+esm6"
            }
          ],
          "type": "ECOSYSTEM"
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      ],
      "versions": [
        "9.0.1-2",
        "9.0.1-2.3~ubuntu1",
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        "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",
        "9.0.1-2.3~ubuntu1.18.04.8+esm2",
        "9.0.1-2.3~ubuntu1.18.04.8+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python-pip-whl",
            "binary_version": "20.0.2-5ubuntu1.11"
          },
          {
            "binary_name": "python3-pip",
            "binary_version": "20.0.2-5ubuntu1.11"
          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@20.0.2-5ubuntu1.11?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            {
              "fixed": "20.0.2-5ubuntu1.11"
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          "type": "ECOSYSTEM"
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      ],
      "versions": [
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        "18.1-5build1",
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        "20.0.2-5ubuntu1",
        "20.0.2-5ubuntu1.1",
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        "20.0.2-5ubuntu1.4",
        "20.0.2-5ubuntu1.5",
        "20.0.2-5ubuntu1.6",
        "20.0.2-5ubuntu1.7",
        "20.0.2-5ubuntu1.8",
        "20.0.2-5ubuntu1.9",
        "20.0.2-5ubuntu1.10"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-urllib3",
            "binary_version": "1.25.8-2ubuntu0.4"
          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@1.25.8-2ubuntu0.4?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.25.8-2ubuntu0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.24.1-1ubuntu1",
        "1.24.1-1ubuntu2",
        "1.25.8-1",
        "1.25.8-2",
        "1.25.8-2ubuntu0.1",
        "1.25.8-2ubuntu0.2",
        "1.25.8-2ubuntu0.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-pip",
            "binary_version": "22.0.2+dfsg-1ubuntu0.5"
          },
          {
            "binary_name": "python3-pip-whl",
            "binary_version": "22.0.2+dfsg-1ubuntu0.5"
          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@22.0.2+dfsg-1ubuntu0.5?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "22.0.2+dfsg-1ubuntu0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "20.3.4-4",
        "21.3.1+dfsg-3",
        "22.0.2+dfsg-1",
        "22.0.2+dfsg-1ubuntu0.1",
        "22.0.2+dfsg-1ubuntu0.2",
        "22.0.2+dfsg-1ubuntu0.3",
        "22.0.2+dfsg-1ubuntu0.4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-urllib3",
            "binary_version": "1.26.5-1~exp1ubuntu0.2"
          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@1.26.5-1~exp1ubuntu0.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.26.5-1~exp1ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
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      ],
      "versions": [
        "1.26.5-1~exp1",
        "1.26.5-1~exp1ubuntu0.1"
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    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-pip",
            "binary_version": "24.0+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "python3-pip-whl",
            "binary_version": "24.0+dfsg-1ubuntu1.1"
          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@24.0+dfsg-1ubuntu1.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "24.0+dfsg-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "23.2+dfsg-1",
        "23.3+dfsg-1",
        "24.0+dfsg-1",
        "24.0+dfsg-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python3-urllib3",
            "binary_version": "2.0.7-1ubuntu0.1"
          }
        ],
        "priority_reason": "Per urllib3 developers, this is a highly unlikely scenario"
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@2.0.7-1ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.7-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.26.16-1",
        "1.26.18-1",
        "2.0.7-1"
      ]
    }
  ],
  "aliases": [],
  "details": "urllib3 is a user-friendly HTTP client library for Python. When using urllib3\u0027s proxy support with `ProxyManager`, the `Proxy-Authorization` header is only sent to the configured proxy, as expected. However, when sending HTTP requests *without* using urllib3\u0027s proxy support, it\u0027s possible to accidentally configure the `Proxy-Authorization` header even though it won\u0027t have any effect as the request is not using a forwarding proxy or a tunneling proxy. In those cases, urllib3 doesn\u0027t treat the `Proxy-Authorization` HTTP header as one carrying authentication material and thus doesn\u0027t strip the header on cross-origin redirects. Because this is a highly unlikely scenario, we believe the severity of this vulnerability is low for almost all users. Out of an abundance of caution urllib3 will automatically strip the `Proxy-Authorization` header during cross-origin redirects to avoid the small chance that users are doing this on accident. Users should use urllib3\u0027s proxy support or disable automatic redirects to achieve safe processing of the `Proxy-Authorization` header, but we still decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach. We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited: 1. Setting the `Proxy-Authorization` header without using urllib3\u0027s built-in proxy support. 2. Not disabling HTTP redirects. 3. Either not using an HTTPS origin server or for the proxy or target origin to redirect to a malicious origin. Users are advised to update to either version 1.26.19 or version 2.2.2. Users unable to upgrade may use the `Proxy-Authorization` header with urllib3\u0027s `ProxyManager`, disable HTTP redirects using `redirects=False` when sending requests, or not user the `Proxy-Authorization` header as mitigations.",
  "id": "UBUNTU-CVE-2024-37891",
  "modified": "2026-01-08T05:13:12Z",
  "published": "2024-06-17T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-37891"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-37891"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-34jh-p97f-mpxf"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7084-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7084-2"
    }
  ],
  "related": [
    "USN-7084-1",
    "USN-7084-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-37891"
  ]
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

usn-7084-2

Vulnerability from osv_ubuntu

ubuntu-cve-2024-37891

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature