cvelistv5 - cve-2016-2123

cve-2016-2123

Vulnerability from cvelistv5

Published

2018-11-01 13:00

Modified

2024-08-05 23:17

Severity ?

8.1 (High) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

A flaw was found in samba versions 4.0.0 to 4.5.2. The Samba routine ndr_pull_dnsp_name contains an integer wrap problem, leading to an attacker-controlled memory overwrite. ndr_pull_dnsp_name parses data from the Samba Active Directory ldb database. Any user who can write to the dnsRecord attribute over LDAP can trigger this memory corruption. By default, all authenticated LDAP users can write to the dnsRecord attribute on new DNS objects. This makes the defect a remote privilege escalation.

References

URL	Tags
secalert@redhat.com	http://www.securityfocus.com/bid/94970	Third Party Advisory, VDB Entry
secalert@redhat.com	http://www.securitytracker.com/id/1037493	Third Party Advisory, VDB Entry
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2123	Issue Tracking
secalert@redhat.com	https://www.samba.org/samba/security/CVE-2016-2123.html	Patch, Vendor Advisory

Impacted products

▼	Vendor	Product
	[UNKNOWN]	samba

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T23:17:50.724Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
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              "x_transferred"
            ],
            "url": "https://www.samba.org/samba/security/CVE-2016-2123.html"
          },
          {
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            "tags": [
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              "x_transferred"
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            "url": "http://www.securityfocus.com/bid/94970"
          },
          {
            "tags": [
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            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2123"
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              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1037493"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "samba",
          "vendor": "[UNKNOWN]",
          "versions": [
            {
              "status": "affected",
              "version": "versions 4.0.0 to 4.5.2"
            }
          ]
        }
      ],
      "datePublic": "2016-12-19T00:00:00",
      "descriptions": [
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        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2018-11-02T09:57:01",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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        },
        {
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            "x_refsource_BID"
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        },
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            "x_refsource_SECTRACK"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2016-2123",
    "datePublished": "2018-11-01T13:00:00",
    "dateReserved": "2016-01-29T00:00:00",
    "dateUpdated": "2024-08-05T23:17:50.724Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2016-2123\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2018-11-01T13:29:00.363\",\"lastModified\":\"2024-02-08T02:10:35.207\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw was found in samba versions 4.0.0 to 4.5.2. The Samba routine ndr_pull_dnsp_name contains an integer wrap problem, leading to an attacker-controlled memory overwrite. ndr_pull_dnsp_name parses data from the Samba Active Directory ldb database. Any user who can write to the dnsRecord attribute over LDAP can trigger this memory corruption. By default, all authenticated LDAP users can write to the dnsRecord attribute on new DNS objects. This makes the defect a remote privilege escalation.\"},{\"lang\":\"es\",\"value\":\"Se ha encontrado un error en Samba, de la versi\u00f3n 4.0.0 a la 4.5.2. La rutina de Samba ndr_pull_dnsp_name contiene un problema de envoltorio de enteros que conduce a una sobrescritura de memoria controlada por el atacante. ndr_pull_dnsp_name analiza datos de la base de datos ldb Samba Active Directory. Cualquier usuario que pueda escribir en el atributo dnsRecord mediante LDAP puede desencadenar esta corrupci\u00f3n de memoria. Por defecto, todos los usuarios LDAP autenticados pueden escribir en el atributo dnsRecord en nuevos objetos DNS. 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  }
}

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.

Action not permitted

cve-2016-2123

Vulnerability from cvelistv5

gsd-2016-2123

Vulnerability from gsd

ghsa-m2v2-w4f9-rmq6

Vulnerability from github

Tags

Sightings

Nomenclature