Vulnerability-Lookup

ALSA-2022:0332

Vulnerability from osv_almalinux – Published: 2022-01-31 15:40 – Updated: 2022-02-01 09:11 – Source website

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)

References

URL

Type

https://vulners.com/cve/CVE-2021-44142

REPORT

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-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 redhat root

References

3 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2019672
https://www.samba.org/samba/security/CVE-2020-257…
https://security.gentoo.org/glsa/202309-06	vendor-advisory

Impacted products

1 product

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

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
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          "dateUpdated": "2024-08-04T15:40:36.637Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2019672"
          },
          {
            "tags": [
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            "url": "https://www.samba.org/samba/security/CVE-2020-25717.html"
          },
          {
            "name": "GLSA-202309-06",
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              "vendor-advisory",
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            "url": "https://security.gentoo.org/glsa/202309-06"
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    "cna": {
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          "product": "samba",
          "vendor": "n/a",
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          ]
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      ],
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        },
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          "url": "https://www.samba.org/samba/security/CVE-2020-25717.html"
        },
        {
          "name": "GLSA-202309-06",
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    "datePublished": "2022-02-18T00:00:00.000Z",
    "dateReserved": "2020-09-16T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:40:36.637Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:30 UTC

CWE

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

Assigner

redhat redhat root

References

6 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
https://www.kb.cert.org/vuls/id/119678

Impacted products

1 product

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

Date Public

2022-01-31 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:17:24.423Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.samba.org/samba/security/CVE-2021-44142.html"
          },
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            ],
            "url": "https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin"
          },
          {
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              "third-party-advisory",
              "x_transferred"
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            "url": "https://kb.cert.org/vuls/id/119678"
          },
          {
            "tags": [
              "x_transferred"
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            "url": "https://bugzilla.samba.org/show_bug.cgi?id=14914"
          },
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        "metrics": [
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

ALSA-2022:0332

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

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

Tags

Sightings

Nomenclature

Related by attack behaviour