github - ghsa-jrfc-f73c-qmrr

ghsa-jrfc-f73c-qmrr

Vulnerability from github

Published

2022-03-04 00:00

Modified

2022-03-17 00:03

Severity ?

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

In DCE/RPC it is possible to share the handles (cookies for resource state) between multiple connections via a mechanism called 'association groups'. These handles can reference connections to our sam.ldb database. However while the database was correctly shared, the user credentials state was only pointed at, and when one connection within that association group ended, the database would be left pointing at an invalid 'struct session_info'. The most likely outcome here is a crash, but it is possible that the use-after-free could instead allow different user state to be pointed at and this might allow more privileged access.

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-3738"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-02T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "In DCE/RPC it is possible to share the handles (cookies for resource state) between multiple connections via a mechanism called \u0027association groups\u0027. These handles can reference connections to our sam.ldb database. However while the database was correctly shared, the user credentials state was only pointed at, and when one connection within that association group ended, the database would be left pointing at an invalid \u0027struct session_info\u0027. The most likely outcome here is a crash, but it is possible that the use-after-free could instead allow different user state to be pointed at and this might allow more privileged access.",
  "id": "GHSA-jrfc-f73c-qmrr",
  "modified": "2022-03-17T00:03:59Z",
  "published": "2022-03-04T00:00:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3738"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2021726"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.samba.org/show_bug.cgi?id=14468"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202309-06"
    },
    {
      "type": "WEB",
      "url": "https://www.samba.org/samba/security/CVE-2021-3738.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-3738

Vulnerability from cvelistv5

Published

2022-03-02 00:00

Modified

2024-08-03 17:01

Severity ?

Summary

References

▼	URL	Tags
	https://www.samba.org/samba/security/CVE-2021-3738.html
	https://bugzilla.samba.org/show_bug.cgi?id=14468
	https://bugzilla.redhat.com/show_bug.cgi?id=2021726
	https://security.gentoo.org/glsa/202309-06	vendor-advisory

Impacted products

▼	Vendor	Product
	n/a	samba

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:01:07.949Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.samba.org/samba/security/CVE-2021-3738.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.samba.org/show_bug.cgi?id=14468"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2021726"
          },
          {
            "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": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Affects all versions since samba 4.0 | Fixedin samba v4.15.2, v4.14.10 and v4.13.14"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In DCE/RPC it is possible to share the handles (cookies for resource state) between multiple connections via a mechanism called \u0027association groups\u0027. These handles can reference connections to our sam.ldb database. However while the database was correctly shared, the user credentials state was only pointed at, and when one connection within that association group ended, the database would be left pointing at an invalid \u0027struct session_info\u0027. The most likely outcome here is a crash, but it is possible that the use-after-free could instead allow different user state to be pointed at and this might allow more privileged access."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416 - Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-09-17T08:06:18.717152",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://www.samba.org/samba/security/CVE-2021-3738.html"
        },
        {
          "url": "https://bugzilla.samba.org/show_bug.cgi?id=14468"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2021726"
        },
        {
          "name": "GLSA-202309-06",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202309-06"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-3738",
    "datePublished": "2022-03-02T00:00:00",
    "dateReserved": "2021-08-26T00:00:00",
    "dateUpdated": "2024-08-03T17:01:07.949Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

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.

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