github - ghsa-cc8x-chx9-c63q

GHSA-CC8X-CHX9-C63Q

Vulnerability from github – Published: 2022-05-24 19:11 – Updated: 2022-05-24 19:11

Details

In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-25218"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-18T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition.",
  "id": "GHSA-cc8x-chx9-c63q",
  "modified": "2022-05-24T19:11:29Z",
  "published": "2022-05-24T19:11:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25218"
    },
    {
      "type": "WEB",
      "url": "https://kb.isc.org/v1/docs/cve-2021-25218"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210909-0002"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/08/18/3"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/08/20/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-25218 (GCVE-0-2021-25218)

Vulnerability from cvelistv5 – Published: 2021-08-18 18:20 – Updated: 2024-09-17 03:07

Summary

Severity ?

7.5 (High)


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

CWE

If named attempts to respond over UDP with a response that is larger than the current effective interface maximum transmission unit (MTU), and if response-rate limiting (RRL) is active, an assertion failure is triggered (resulting in termination of the named server process). There are two ways for named to exceed the interface MTU: Direct configuration in named.conf setting max-udp-size to a value larger than the interface's MTU, or Path MTU discovery (PMTUD) informing the IP stack that it should use a smaller MTU for the interface and destination than the default max-udp-size value of 1232. Some operating systems allow packets received via other protocols to affect PMTUD values for DNS over UDP. While RRL is not enabled by default for user-defined views or the built-in default INTERNET (IN) class view, "_default", the built-in default CHAOS (CH) class view, "_bind", does have RRL enabled. Note that while this defect can be triggered through misconfiguration or by deliberate exploitation, it can also arise during normal operating conditions, even with hardened PMTUD settings. Affects BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition.

Assigner

isc

References

URL

Tags

	https://kb.isc.org/v1/docs/cve-2021-25218	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2021/08/18/3	mailing-listx_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2021/08/20/2	mailing-listx_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://security.netapp.com/advisory/ntap-2021090…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	ISC	BIND9	Affected: Stable Branch 9.16.19 Affected: Development Branch 9.17.16 Affected: Supported Preview Edition 9.16.19-S1

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          "dateUpdated": "2024-08-03T19:56:11.055Z",
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          "value": "Upgrade to the patched release most closely related to your current version of BIND:\n\n    BIND 9.16.20\n    BIND 9.17.17\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    BIND 9.16.20-S1"
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}

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-CC8X-CHX9-C63Q

CVE-2021-25218 (GCVE-0-2021-25218)

Tags

Sightings

Nomenclature