CVE-2021-25214 (GCVE-0-2021-25214)

Vulnerability from cvelistv5 – Published: 2021-04-29 00:55 – Updated: 2024-09-17 00:37
VLAI
Title
A broken inbound incremental zone update (IXFR) can cause named to terminate unexpectedly
Summary
In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • Incremental zone transfers (IXFR) provide a way of transferring changed portion(s) of a zone between servers. An IXFR stream containing SOA records with an owner name other than the transferred zone's apex may cause the receiving named server to inadvertently remove the SOA record for the zone in question from the zone database. This leads to an assertion failure when the next SOA refresh query for that zone is made. Affects BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch.
Assigner
isc
References
Impacted products
Vendor Product Version
ISC BIND9 Affected: Open Source Branch 9.8 9.8.5 through 9.8.8
Affected: Open Source Branches 9.9 through 9.11 9.9.3 through versions before 9.11.30
Affected: Open Source Branches 9.12 through 9.16 9.12.0 through versions before 9.16.14
Affected: Supported Preview Branches 9.9-S through 9.11-S 9.9.3-S1 through versions before 9.11.30-S1
Affected: Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.14-S1
Affected: Development Branch 9.17 9.17.0 through versiosn before 9.17.12
Create a notification for this product.
Date Public
2021-04-28 00:00
Credits
ISC would like to thank Greg Kuechle of SaskTel for bringing this vulnerability to our attention.
Show details on NVD website
To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-25214\",\"sourceIdentifier\":\"security-officer@isc.org\",\"published\":\"2021-04-29T01:15:07.977\",\"lastModified\":\"2024-11-21T05:54:33.470\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In BIND 9.8.5 -\u003e 9.8.8, 9.9.3 -\u003e 9.11.29, 9.12.0 -\u003e 9.16.13, and versions BIND 9.9.3-S1 -\u003e 9.11.29-S1 and 9.16.8-S1 -\u003e 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -\u003e 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.\"},{\"lang\":\"es\",\"value\":\"En BIND versiones 9.8.5 posteriores a 9.8.8, versiones 9.9.3 posteriores a 9.11.29, versiones 9.12.0 posteriores a 9.16.13, y BIND versiones 9.9.3-S1 posteriores a 9.11.29-S1 y versiones 9.16.8-S1 posteriores a 9.16.13-S1 de BIND 9 Supported Preview Edition, as\u00ed como versiones de lanzamiento 9.17.0 posteriores a 9.17.11 de la rama de desarrollo de BIND versi\u00f3n 9.17, cuando una versi\u00f3n vulnerable de named recibe un IXFR malformado que desencadena el fallo descrito anteriormente, el proceso named finalizar\u00e1 debido a una aserci\u00f3n fallida la pr\u00f3xima vez que se actualice la zona secundaria transferida\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-officer@isc.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:N/I:N/A:P\",\"baseScore\":4.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-617\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"9.8.5\",\"versionEndIncluding\":\"9.8.8\",\"matchCriteriaId\":\"1256D4F1-698F-4340-B398-3E2931F3B6CA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"9.9.3\",\"versionEndExcluding\":\"9.11.31\",\"matchCriteriaId\":\"3E042BE0-6F1A-4C67-A03D-A5555DE24DAC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"9.12.0\",\"versionEndExcluding\":\"9.16.15\",\"matchCriteriaId\":\"E38EFB1A-11B5-403F-815F-4899E7007D02\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"9.17.0\",\"versionEndExcluding\":\"9.17.12\",\"matchCriteriaId\":\"00F9BCC7-51F7-47EE-AFCE-946F24CC3694\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"40EE014B-0CD8-45F3-BEDB-AE6368A78B04\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.9.12:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"DAF8FA8C-0526-4389-AEC6-92AD62AA3929\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.9.13:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"1A9BA952-A5DF-4CBA-8928-0B373C013C32\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"CAD41122-C5D8-4256-8CB7-FF88DCD96A13\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.10.7:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"6243685F-1E5B-4FF6-AE1B-44798032FBA6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"C2FE13E1-0646-46FC-875B-CB4C34E20101\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"1AA16E51-819C-4A1B-B66E-1C60C1782C0D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"91533F9F-C0E5-4E84-8A4C-F744F956BF97\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.5:s6:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"46E6A4BD-D69B-4A70-821D-5612DD1315EF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"8AF9D390-0D5B-4963-A2D3-BF1E7CD95E9D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.7:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"AB2B92F1-6BA8-41CA-9000-E0633462CC28\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.8:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"02CA4635-7DFC-408E-A837-856E0F96CA1B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.12:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"3CABCB08-B838-45F7-AA87-77C6B8767DD0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"5CC1F26C-4757-4C87-BD8B-2FA456A88C6F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:isc:bind:9.11.27:s1:*:*:supported_preview:*:*:*\",\"matchCriteriaId\":\"582A4948-B64F-45D4-807A-846A85BB6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Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEC2XG4Q2ODTN2C4CGXEIXU3EUTBMK7L/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDSRPCJQ7MZC6CENH5PO3VQOFI7VSWBE/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20210521-0006/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4909\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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Tags
Taxonomy of the tags.





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.