cve-2021-44142
Vulnerability from cvelistv5
Published
2022-02-21 14:30
Modified
2024-09-16 16:27
Severity ?
Summary
The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.
References
secalert@redhat.comhttps://bugzilla.samba.org/show_bug.cgi?id=14914
secalert@redhat.comhttps://kb.cert.org/vuls/id/119678
secalert@redhat.comhttps://security.gentoo.org/glsa/202309-06
secalert@redhat.comhttps://www.samba.org/samba/security/CVE-2021-44142.html
secalert@redhat.comhttps://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin
Impacted products
SambaSamba
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:17:24.423Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://www.kb.cert.org/vuls/id/119678"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.samba.org/samba/security/CVE-2021-44142.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin"
          },
          {
            "tags": [
              "third-party-advisory",
              "x_transferred"
            ],
            "url": "https://kb.cert.org/vuls/id/119678"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.samba.org/show_bug.cgi?id=14914"
          },
          {
            "name": "GLSA-202309-06",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202309-06"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Samba",
          "vendor": "Samba",
          "versions": [
            {
              "lessThan": "4.13.17",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "4.14.12",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "4.15.5",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2022-01-31T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide \"...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver.\" Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125 Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-09-17T08:06:35.393591",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://www.samba.org/samba/security/CVE-2021-44142.html"
        },
        {
          "url": "https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://kb.cert.org/vuls/id/119678"
        },
        {
          "url": "https://bugzilla.samba.org/show_bug.cgi?id=14914"
        },
        {
          "name": "GLSA-202309-06",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202309-06"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-44142",
    "datePublished": "2022-02-21T14:30:12.659324Z",
    "dateReserved": "2021-11-22T00:00:00",
    "dateUpdated": "2024-09-16T16:27:52.187Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-44142\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2022-02-21T15:15:07.380\",\"lastModified\":\"2023-11-07T03:39:33.470\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide \\\"...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver.\\\" Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.\"},{\"lang\":\"es\",\"value\":\"El m\u00f3dulo vfs_fruit de Samba usa atributos de archivo extendidos (EA, xattr) para proporcionar \\\"...compatibilidad mejorada con los clientes SMB de Apple e interoperabilidad con un servidor de archivos AFP de Netatalk 3\\\". Samba versiones anteriores a 4.13.17, 4.14.12 y 4.15.5 con vfs_fruit configurado permiten una lectura y escritura fuera de l\u00edmites de la pila por medio de atributos de archivo extendidos especialmente dise\u00f1ados. Un atacante remoto con acceso de escritura a los atributos de archivo extendidos puede ejecutar c\u00f3digo arbitrario con los privilegios de smbd, t\u00edpicamente root\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:C/I:C/A:C\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\",\"baseScore\":9.0},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":8.0,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"},{\"lang\":\"en\",\"value\":\"CWE-787\"}]},{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"},{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.13.17\",\"matchCriteriaId\":\"D7E470E9-2683-48E5-B8F0-02BBDC7F3231\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.0\",\"versionEndExcluding\":\"4.14.12\",\"matchCriteriaId\":\"4E57F9C0-2EA0-4485-B018-665139BA3F42\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15.0\",\"versionEndExcluding\":\"4.15.5\",\"matchCriteriaId\":\"24842378-D0A4-49CC-B4AF-8A1FC74427F8\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*\",\"matchCriteriaId\":\"815D70A8-47D3-459C-A32C-9FEACA0659D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*\",\"matchCriteriaId\":\"7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"902B8056-9E37-443B-8905-8AA93E2447FB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AAE4D2D0-CEEB-416F-8BC5-A7987DF56190\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.2.4-25556.4\",\"matchCriteriaId\":\"D6095F8A-383B-46F9-ABBF-74783500B6F1\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A930E247-0B43-43CB-98FF-6CE7B8189835\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"80E516C0-98A4-4ADE-B69F-66A772E2BAAA\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:codeready_linux_builder:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1CD81C46-328B-412D-AF4E-68A2AD2F1A73\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:gluster_storage:3.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"135265D8-583D-41EB-B741-419FC871CE91\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BB28F9AF-3D06-4532-B397-96D7E4792503\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"142AD0DD-4CF3-4D74-9442-459CE3347E3A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F4CFF558-3C47-480D-A2F0-BABF26042943\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"33C068A4-3780-4EAB-A937-6082DF847564\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"831F0F47-3565-4763-B16F-C87B1FF2035E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0E3F09B5-569F-4C58-9FCA-3C0953D107B5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"566507B6-AC95-47F7-A3FB-C6F414E45F51\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"87C21FE1-EA5C-498F-9C6C-D05F91A88217\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0AB105EC-19F9-424A-86F1-305A6FD74A9C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8C9BD9AE-46FC-4609-8D99-A3CFE91D58D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1CDCFF34-6F1D-45A1-BE37-6A0E17B04801\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B4A684C7-88FD-43C4-9BDB-AE337FCBD0AB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"47811209-5CE5-4375-8391-B0A7F6A0E420\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E5C80DB2-4A78-4EC9-B2A8-1E4D902C4834\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"983533DD-3970-4A37-9A9C-582BD48AA1E5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"37CE1DC7-72C5-483C-8921-0B462C8284D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_resilient_storage:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F66BE726-A258-42D7-B23A-925F50FDF449\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"51EF4996-72F4-4FA4-814F-F5991E7A8318\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server:8.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"58A2A898-C4C2-4670-8A0D-274F7CE6E460\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6897676D-53F9-45B3-B27F-7FF9A4C58D33\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E28F226A-CBC7-4A32-BE58-398FA5B42481\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B09ACF2D-D83F-4A86-8185-9569605D8EE1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AC10D919-57FD-4725-B8D2-39ECB476902F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"48C2E003-A71C-4D06-B8B3-F93160568182\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3921C1CF-A16D-4727-99AD-03EFFA7C91CA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BC6DD887-9744-43EA-8B3C-44C6B6339590\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"825ECE2D-E232-46E0-A047-074B34DB1E97\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.samba.org/show_bug.cgi?id=14914\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://kb.cert.org/vuls/id/119678\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://security.gentoo.org/glsa/202309-06\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://www.samba.org/samba/security/CVE-2021-44142.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin\",\"source\":\"secalert@redhat.com\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.