usn-5260-1
Vulnerability from osv_ubuntu
Published
2022-02-01 11:52
Modified
2026-04-27 14:11
Summary
samba vulnerabilities
Details

Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled certain memory operations. A remote attacker could use this issue to cause Samba to crash, resulting in a denial of service, or possibly execute arbitrary code as root. (CVE-2021-44142)

Michael Hanselmann discovered that Samba incorrectly created directories. In certain configurations, a remote attacker could possibly create a directory on the server outside of the shared directory. (CVE-2021-43566)

Kees van Vloten discovered that Samba incorrectly handled certain aliased SPN checks. A remote attacker could possibly use this issue to impersonate services. (CVE-2022-0336)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-43566",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-44142",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-0336",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "ctdb",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "libnss-winbind",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "libpam-winbind",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "libsmbclient",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "libwbclient0",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "python3-samba",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "registry-tools",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "samba",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "samba-common",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "samba-common-bin",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "samba-dsdb-modules",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "samba-libs",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "samba-testsuite",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "samba-vfs-modules",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "smbclient",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          },
          {
            "binary_name": "winbind",
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "samba",
        "purl": "pkg:deb/ubuntu/samba@2:4.13.17~dfsg-0ubuntu0.21.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:4.13.17~dfsg-0ubuntu0.21.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:4.10.7+dfsg-0ubuntu2",
        "2:4.10.7+dfsg-0ubuntu3",
        "2:4.11.1+dfsg-3ubuntu1",
        "2:4.11.1+dfsg-3ubuntu2",
        "2:4.11.1+dfsg-3ubuntu4",
        "2:4.11.5+dfsg-1ubuntu1",
        "2:4.11.5+dfsg-1ubuntu2",
        "2:4.11.6+dfsg-0ubuntu1",
        "2:4.11.6+dfsg-0ubuntu1.1",
        "2:4.11.6+dfsg-0ubuntu1.2",
        "2:4.11.6+dfsg-0ubuntu1.3",
        "2:4.11.6+dfsg-0ubuntu1.4",
        "2:4.11.6+dfsg-0ubuntu1.5",
        "2:4.11.6+dfsg-0ubuntu1.6",
        "2:4.11.6+dfsg-0ubuntu1.8",
        "2:4.11.6+dfsg-0ubuntu1.9",
        "2:4.11.6+dfsg-0ubuntu1.10",
        "2:4.13.14+dfsg-0ubuntu0.20.04.1",
        "2:4.13.14+dfsg-0ubuntu0.20.04.2",
        "2:4.13.14+dfsg-0ubuntu0.20.04.3",
        "2:4.13.14+dfsg-0ubuntu0.20.04.4"
      ]
    }
  ],
  "aliases": [],
  "details": "Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled\ncertain memory operations. A remote attacker could use this issue to cause\nSamba to crash, resulting in a denial of service, or possibly execute\narbitrary code as root. (CVE-2021-44142)\n\nMichael Hanselmann discovered that Samba incorrectly created directories.\nIn certain configurations, a remote attacker could possibly create a\ndirectory on the server outside of the shared directory. (CVE-2021-43566)\n\nKees van Vloten discovered that Samba incorrectly handled certain aliased\nSPN checks. A remote attacker could possibly use this issue to impersonate\nservices. (CVE-2022-0336)\n",
  "id": "USN-5260-1",
  "modified": "2026-04-27T14:11:27Z",
  "published": "2022-02-01T11:52:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5260-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-43566"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-44142"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-0336"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "samba vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-43566",
    "UBUNTU-CVE-2021-44142",
    "UBUNTU-CVE-2022-0336"
  ]
}



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.