ubuntu-cve-2021-3572
Vulnerability from osv_ubuntu
Published
2021-11-10 18:15
Modified
2025-10-15 16:50
Summary
Details

A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote attacker could possibly use this issue to install a different revision on a repository. The highest threat from this vulnerability is to data integrity. This is fixed in python-pip version 21.1.

Severity
5.7 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-pip",
            "binary_version": "1.5.4-1ubuntu4+esm1"
          },
          {
            "binary_name": "python-pip-whl",
            "binary_version": "1.5.4-1ubuntu4+esm1"
          },
          {
            "binary_name": "python3-pip",
            "binary_version": "1.5.4-1ubuntu4+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@1.5.4-1ubuntu4+esm1?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.4-1ubuntu4+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.1-2",
        "1.5.4-1",
        "1.5.4-1ubuntu1",
        "1.5.4-1ubuntu3",
        "1.5.4-1ubuntu4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-pip",
            "binary_version": "8.1.1-2ubuntu0.6+esm2"
          },
          {
            "binary_name": "python-pip-whl",
            "binary_version": "8.1.1-2ubuntu0.6+esm2"
          },
          {
            "binary_name": "python3-pip",
            "binary_version": "8.1.1-2ubuntu0.6+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@8.1.1-2ubuntu0.6+esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.1.1-2ubuntu0.6+esm2"
            }
          ],
          "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"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "python-pip",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.5+esm2"
          },
          {
            "binary_name": "python-pip-whl",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.5+esm2"
          },
          {
            "binary_name": "python3-pip",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.5+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "python-pip",
        "purl": "pkg:deb/ubuntu/python-pip@9.0.1-2.3~ubuntu1.18.04.5+esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.1-2.3~ubuntu1.18.04.5+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"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote attacker could possibly use this issue to install a different revision on a repository. The highest threat from this vulnerability is to data integrity. This is fixed in python-pip version 21.1.",
  "id": "UBUNTU-CVE-2021-3572",
  "modified": "2025-10-15T16:50:12Z",
  "published": "2021-11-10T18:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3572"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pypa/pip/pull/9827"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pypa/pip/issues/10042"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pypa/pip/issues/10042#issuecomment-857452480"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/skazi0/CVE-2021-3572/blob/master/CVE-2021-3572-v9.0.1.patch"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4961-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-3572"
    }
  ],
  "related": [
    "USN-4961-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-3572"
  ]
}



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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.