github - ghsa-3cr4-c5wq-3ccv

GHSA-3CR4-C5WQ-3CCV

Vulnerability from github – Published: 2022-05-24 16:58 – Updated: 2024-04-04 02:12

Details

By design, BIND is intended to limit the number of TCP clients that can be connected at any given time. The number of allowed connections is a tunable parameter which, if unset, defaults to a conservative value for most servers. Unfortunately, the code which was intended to limit the number of simultaneous connections contained an error which could be exploited to grow the number of simultaneous connections beyond this limit. Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.6, 9.12.0 -> 9.12.4, 9.14.0. BIND 9 Supported Preview Edition versions 9.9.3-S1 -> 9.11.5-S3, and 9.11.5-S5. Versions 9.13.0 -> 9.13.7 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5743.

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2018-5743"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-10-09T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "By design, BIND is intended to limit the number of TCP clients that can be connected at any given time. The number of allowed connections is a tunable parameter which, if unset, defaults to a conservative value for most servers. Unfortunately, the code which was intended to limit the number of simultaneous connections contained an error which could be exploited to grow the number of simultaneous connections beyond this limit. Versions affected: BIND 9.9.0 -\u003e 9.10.8-P1, 9.11.0 -\u003e 9.11.6, 9.12.0 -\u003e 9.12.4, 9.14.0. BIND 9 Supported Preview Edition versions 9.9.3-S1 -\u003e 9.11.5-S3, and 9.11.5-S5. Versions 9.13.0 -\u003e 9.13.7 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5743.",
  "id": "GHSA-3cr4-c5wq-3ccv",
  "modified": "2024-04-04T02:12:06Z",
  "published": "2022-05-24T16:58:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5743"
    },
    {
      "type": "WEB",
      "url": "https://kb.isc.org/docs/cve-2018-5743"
    },
    {
      "type": "WEB",
      "url": "https://support.f5.com/csp/article/K74009656?utm_source=f5support\u0026amp%3Butm_medium=RSS"
    },
    {
      "type": "WEB",
      "url": "https://support.f5.com/csp/article/K74009656?utm_source=f5support\u0026amp;utm_medium=RSS"
    },
    {
      "type": "WEB",
      "url": "https://www.synology.com/security/advisory/Synology_SA_19_20"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-5743 (GCVE-0-2018-5743)

Vulnerability from cvelistv5 – Published: 2019-10-09 14:17 – Updated: 2024-09-17 02:26

Summary

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

By exploiting the failure to limit simultaneous TCP connections, an attacker can deliberately exhaust the pool of file descriptors available to named, potentially affecting network connections and the management of files such as log files or zone journal files. In cases where the named process is not limited by OS-enforced per-process limits, this could additionally potentially lead to exhaustion of all available free file descriptors on that system.

Assigner

isc

References

URL

Tags

	https://kb.isc.org/docs/cve-2018-5743	x_refsource_CONFIRM
	https://www.synology.com/security/advisory/Synolo…	x_refsource_CONFIRM
	https://support.f5.com/csp/article/K74009656?utm_…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	ISC	BIND 9	Affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.6, 9.12.0 -> 9.12.4, 9.14.0. BIND 9 Supported Preview Edition versions 9.9.3-S1 -> 9.11.5-S3, and 9.11.5-S5. Versions 9.13.0 -> 9.13.7 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5743.

Credits

ISC would like to thank AT&T for helping us to discover this issue.

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{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-05T05:40:51.212Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          },
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            "url": "https://www.synology.com/security/advisory/Synology_SA_19_20"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K74009656?utm_source=f5support\u0026amp%3Butm_medium=RSS"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "ISC",
          "versions": [
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            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "ISC would like to thank AT\u0026T for helping us to discover this issue."
        }
      ],
      "datePublic": "2019-04-24T00:00:00",
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        {
          "lang": "en",
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        }
      ],
      "metrics": [
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      "problemTypes": [
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      "providerMetadata": {
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        },
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          ],
          "url": "https://support.f5.com/csp/article/K74009656?utm_source=f5support\u0026amp%3Butm_medium=RSS"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to a version of BIND containing a fix for the ineffective limits.\n\n+    BIND 9.11.6-P1\n+    BIND 9.12.4-P1\n+    BIND 9.14.1\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n +   BIND 9.11.5-S6\n +   BIND 9.11.6-S1"
        }
      ],
      "source": {
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      },
      "title": "Limiting simultaneous TCP clients was ineffective",
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        },
        "affects": {
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                    {
                      "product_name": "BIND 9",
                      "version": {
                        "version_data": [
                          {
                            "version_name": "BIND 9",
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                          }
                        ]
                      }
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  },
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  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-3CR4-C5WQ-3CCV

CVE-2018-5743 (GCVE-0-2018-5743)

Tags

Sightings

Nomenclature