Vulnerability-Lookup

alsa-2022:0332

Vulnerability from osv_almalinux

Published

2022-01-31 15:40

Modified

2022-02-01 09:11

Summary

Critical: samba security and bug fix update

Details

Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.

Security Fix(es):

samba: Out-of-bounds heap read/write vulnerability in VFS module vfs_fruit allows code execution (CVE-2021-44142)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

Fix username map script regression introduced with CVE-2020-25717 (BZ#2046174)
Fix possible segfault when joining the domain (BZ#2046160)

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "libsmbclient-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.14.5-9.el8_5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "libwbclient-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.14.5-9.el8_5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "samba-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.14.5-9.el8_5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "samba-vfs-iouring"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.14.5-9.el8_5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.\n\nSecurity Fix(es):\n\n* samba: Out-of-bounds heap read/write vulnerability in VFS module vfs_fruit allows code execution (CVE-2021-44142)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* Fix username map script regression introduced with CVE-2020-25717 (BZ#2046174)\n\n* Fix possible segfault when joining the domain (BZ#2046160)",
  "id": "ALSA-2022:0332",
  "modified": "2022-02-01T09:11:06Z",
  "published": "2022-01-31T15:40:41Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://vulners.com/cve/CVE-2021-44142"
    }
  ],
  "related": [
    "CVE-2021-44142",
    "CVE-2020-25717"
  ],
  "summary": "Critical: samba security and bug fix update"
}

CVE-2021-44142 (GCVE-0-2021-44142)

Vulnerability from cvelistv5 – Published: 2022-02-21 14:30 – Updated: 2025-04-23 19:02

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.

Severity ?

8.8 (High)


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

CWE

CWE-125 - Out-of-bounds Read
CWE-787 - Out-of-bounds Write

Assigner

redhat

References

URL

Tags

	https://www.samba.org/samba/security/CVE-2021-441…
	https://www.zerodayinitiative.com/blog/2022/2/1/c…
	https://kb.cert.org/vuls/id/119678	third-party-advisory
	https://bugzilla.samba.org/show_bug.cgi?id=14914
	https://security.gentoo.org/glsa/202309-06	vendor-advisory

Impacted products

	Vendor	Product	Version
	Samba	Samba	Affected: unspecified , < 4.13.17 (custom) Affected: unspecified , < 4.14.12 (custom) Affected: unspecified , < 4.15.5 (custom)

Show details on NVD website

JSON

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"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-44142",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T13:30:59.386639Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T19:02:19.767Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "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": "2022-01-31T00:00:00.000Z",
      "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": "2023-09-17T08:06:35.393Z",
        "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": "2022-02-21T14:30:12.659Z",
    "dateReserved": "2021-11-22T00:00:00.000Z",
    "dateUpdated": "2025-04-23T19:02:19.767Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2020-25717 (GCVE-0-2020-25717)

Vulnerability from cvelistv5 – Published: 2022-02-18 00:00 – Updated: 2024-08-04 15:40

Summary

A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

Severity ?

No CVSS data available.

CWE

CWE-20

Assigner

redhat

References

URL

	Vendor	Product	Version
	n/a	samba	Affected: samba 4.15.2, samba 4.14.10, samba 4.13.14

Sightings

Author	Source	Type	Date

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.

Action not permitted

alsa-2022:0332

Vulnerability from osv_almalinux

CVE-2021-44142 (GCVE-0-2021-44142)

CVE-2020-25717 (GCVE-0-2020-25717)

Tags

Sightings

Nomenclature