usn-5745-1
Vulnerability from osv_ubuntu
Published
2022-11-28 14:28
Modified
2026-06-29 10:52
Summary
shadow vulnerability
Details

Florian Weimer discovered that shadow was not properly copying and removing user directory trees, which could lead to a race condition. A local attacker could possibly use this issue to setup a symlink attack and alter or remove directories without authorization.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "login",
            "binary_version": "1:4.1.5.1-1ubuntu9.5+esm2"
          },
          {
            "binary_name": "passwd",
            "binary_version": "1:4.1.5.1-1ubuntu9.5+esm2"
          },
          {
            "binary_name": "uidmap",
            "binary_version": "1:4.1.5.1-1ubuntu9.5+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "shadow",
        "purl": "pkg:deb/ubuntu/shadow@1:4.1.5.1-1ubuntu9.5+esm2?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.1.5.1-1ubuntu9.5+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.1.5.1-1ubuntu6",
        "1:4.1.5.1-1ubuntu7",
        "1:4.1.5.1-1ubuntu8",
        "1:4.1.5.1-1ubuntu9",
        "1:4.1.5.1-1ubuntu9.1",
        "1:4.1.5.1-1ubuntu9.2",
        "1:4.1.5.1-1ubuntu9.4",
        "1:4.1.5.1-1ubuntu9.5",
        "1:4.1.5.1-1ubuntu9.5+esm1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "login",
            "binary_version": "1:4.2-3.1ubuntu5.5+esm2"
          },
          {
            "binary_name": "passwd",
            "binary_version": "1:4.2-3.1ubuntu5.5+esm2"
          },
          {
            "binary_name": "uidmap",
            "binary_version": "1:4.2-3.1ubuntu5.5+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "shadow",
        "purl": "pkg:deb/ubuntu/shadow@1:4.2-3.1ubuntu5.5+esm2?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.2-3.1ubuntu5.5+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.1.5.1-1.1ubuntu7",
        "1:4.2-3.1ubuntu1",
        "1:4.2-3.1ubuntu2",
        "1:4.2-3.1ubuntu3",
        "1:4.2-3.1ubuntu4",
        "1:4.2-3.1ubuntu5",
        "1:4.2-3.1ubuntu5.2",
        "1:4.2-3.1ubuntu5.3",
        "1:4.2-3.1ubuntu5.4",
        "1:4.2-3.1ubuntu5.5+esm1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "login",
            "binary_version": "1:4.5-1ubuntu2.4"
          },
          {
            "binary_name": "passwd",
            "binary_version": "1:4.5-1ubuntu2.4"
          },
          {
            "binary_name": "uidmap",
            "binary_version": "1:4.5-1ubuntu2.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "shadow",
        "purl": "pkg:deb/ubuntu/shadow@1:4.5-1ubuntu2.4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.5-1ubuntu2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.2-3.2ubuntu4",
        "1:4.5-1ubuntu1",
        "1:4.5-1ubuntu2",
        "1:4.5-1ubuntu2.2",
        "1:4.5-1ubuntu2.3"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "login",
            "binary_version": "1:4.8.1-1ubuntu5.20.04.3"
          },
          {
            "binary_name": "passwd",
            "binary_version": "1:4.8.1-1ubuntu5.20.04.3"
          },
          {
            "binary_name": "uidmap",
            "binary_version": "1:4.8.1-1ubuntu5.20.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "shadow",
        "purl": "pkg:deb/ubuntu/shadow@1:4.8.1-1ubuntu5.20.04.3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.8.1-1ubuntu5.20.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.5-1.1ubuntu4",
        "1:4.8-1ubuntu1",
        "1:4.8.1-1ubuntu1",
        "1:4.8.1-1ubuntu2",
        "1:4.8.1-1ubuntu3",
        "1:4.8.1-1ubuntu4",
        "1:4.8.1-1ubuntu5",
        "1:4.8.1-1ubuntu5.20.04",
        "1:4.8.1-1ubuntu5.20.04.1",
        "1:4.8.1-1ubuntu5.20.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2013-4235",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "login",
            "binary_version": "1:4.8.1-2ubuntu2.1"
          },
          {
            "binary_name": "passwd",
            "binary_version": "1:4.8.1-2ubuntu2.1"
          },
          {
            "binary_name": "uidmap",
            "binary_version": "1:4.8.1-2ubuntu2.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "shadow",
        "purl": "pkg:deb/ubuntu/shadow@1:4.8.1-2ubuntu2.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.8.1-2ubuntu2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.8.1-1ubuntu9",
        "1:4.8.1-1ubuntu10",
        "1:4.8.1-2ubuntu1",
        "1:4.8.1-2ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "Florian Weimer discovered that shadow was not properly copying and removing\nuser directory trees, which could lead to a race condition. A local attacker\ncould possibly use this issue to setup a symlink attack and alter or remove\ndirectories without authorization.\n",
  "id": "USN-5745-1",
  "modified": "2026-06-29T10:52:58Z",
  "published": "2022-11-28T14:28:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5745-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2013-4235"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "shadow vulnerability",
  "upstream": [
    "UBUNTU-CVE-2013-4235"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

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.