usn-3683-1
Vulnerability from osv_ubuntu
Published
2018-06-13 11:18
Modified
2026-04-22 07:36
Summary
bind9 vulnerability
Details

Andrew Skalski discovered that Bind could incorrectly enable recursion when the "allow-recursion" setting wasn't specified. This issue could improperly permit recursion to all clients, contrary to expectations.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-5738",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bind9",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "bind9-host",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "bind9utils",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "dnsutils",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libbind9-160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libdns-export1100",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libdns1100",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libirs-export160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libirs160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libisc-export169",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libisc169",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libisccc-export160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libisccc160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libisccfg-export160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "libisccfg160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          },
          {
            "binary_name": "liblwres160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "bind9",
        "purl": "pkg:deb/ubuntu/bind9@1:9.11.3+dfsg-1ubuntu1.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:9.11.3+dfsg-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:9.10.3.dfsg.P4-12.6ubuntu1",
        "1:9.11.2.P1-1ubuntu2",
        "1:9.11.2.P1-1ubuntu3",
        "1:9.11.2.P1-1ubuntu4",
        "1:9.11.2.P1-1ubuntu5",
        "1:9.11.3+dfsg-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Andrew Skalski discovered that Bind could incorrectly enable recursion\nwhen the \"allow-recursion\" setting wasn\u0027t specified. This issue could\nimproperly permit recursion to all clients, contrary to expectations.\n",
  "id": "USN-3683-1",
  "modified": "2026-04-22T07:36:35Z",
  "published": "2018-06-13T11:18:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3683-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-5738"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "bind9 vulnerability",
  "upstream": [
    "UBUNTU-CVE-2018-5738"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.