CVE-2021-3671 (GCVE-0-2021-3671)

Vulnerability from cvelistv5 – Published: 2021-10-12 00:00 – Updated: 2024-08-03 17:01
VLAI
Summary
A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1036 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
n/a Samba Affected: Fixed in samba 4.13.12, samba 4.14.8
Show details on NVD website
To clipboard 

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                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T16:12:19+00:00",
      "cve": "CVE-2021-3671",
      "id": "CVE-2021-3671",
      "initial_release_date": "2021-08-31T00:00:00+00:00",
      "product_status:known_not_affected": "136",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "samba: Null pointer dereference on missing sname in TGS-REQ",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-3671.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-25T17:44:51Z",
      "cve": "CVE-2021-3671",
      "id": "CVE-2021-3671",
      "initial_release_date": "2023-02-15T03:48:46Z",
      "product_status:known_not_affected": "2094",
      "product_status:recommended": "90",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2021-3671",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2021-3671.json",
      "version": "12"
    }
  }
}



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