{"containers": {"cna": {"affected": [{"product": "Cisco IOS", "vendor": "Cisco", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2020-09-24T00:00:00", "descriptions": [{"lang": "en", "value": "A vulnerability in the Split DNS feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability occurs because the regular expression (regex) engine that is used with the Split DNS feature of affected releases may time out when it processes the DNS name list configuration. An attacker could exploit this vulnerability by trying to resolve an address or hostname that the affected device handles. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition."}], "exploits": [{"lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-185", "description": "CWE-185", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-09-24T18:01:59", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco"}, "references": [{"name": "20200924 Cisco IOS and IOS XE Software Split DNS Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-splitdns-SPWqpdGW"}], "source": {"advisory": "cisco-sa-splitdns-SPWqpdGW", "defect": [["CSCvt78186"]], "discovery": "INTERNAL"}, "title": "Cisco IOS and IOS XE Software Split DNS Denial of Service Vulnerability", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2020-09-24T16:00:00", "ID": "CVE-2020-3408", "STATE": "PUBLIC", "TITLE": "Cisco IOS and IOS XE Software Split DNS Denial of Service Vulnerability"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Cisco IOS", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "Cisco"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in the Split DNS feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability occurs because the regular expression (regex) engine that is used with the Split DNS feature of affected releases may time out when it processes the DNS name list configuration. An attacker could exploit this vulnerability by trying to resolve an address or hostname that the affected device handles. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition."}]}, "exploit": [{"lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "impact": {"cvss": {"baseScore": "8.6", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-185"}]}]}, "references": {"reference_data": [{"name": "20200924 Cisco IOS and IOS XE Software Split DNS Denial of Service Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-splitdns-SPWqpdGW"}]}, "source": {"advisory": "cisco-sa-splitdns-SPWqpdGW", "defect": [["CSCvt78186"]], "discovery": "INTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T07:30:58.170Z"}, "title": "CVE Program Container", "references": [{"name": "20200924 Cisco IOS and IOS XE Software Split DNS Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO", "x_transferred"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-splitdns-SPWqpdGW"}]}]}, "cveMetadata": {"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2020-3408", "datePublished": "2020-09-24T18:01:59.804395Z", "dateReserved": "2019-12-12T00:00:00", "dateUpdated": "2024-09-16T23:15:53.637Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios:15.8\\(3\\)m3:*:*:*:*:*:*:*", "matchCriteriaId": "3C4162EC-90DE-4194-8ABC-55CCB8C24FF6", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios_xe:15.8\\(3\\)m3:*:*:*:*:*:*:*", "matchCriteriaId": "A58F0641-940D-4C2C-9DAF-3FF4E0650F9F", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:cisco:1100-4g_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "0F77CD6A-83DA-4F31-A128-AD6DAECD623B", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1100-4gltegb_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "62564BB8-1282-4597-A645-056298BE7CCB", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1100-4gltena_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "80E9CC47-3D7C-437A-85BE-4BB94C8AF1B8", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1100-4p_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2D2305B-B69E-4F74-A44E-07B3205CE9F7", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1100-6g_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "2B68B363-3C57-4E95-8B13-0F9B59D551F7", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1100-8p_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "26DD41B3-1D1D-44D3-BA8E-5A66AFEE77E6", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1100-lte_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "EBE4E146-1D77-4F15-AE58-3C1CE5DB62C5", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "1952B64C-4AE0-4CCB-86C5-8D1FF6A12822", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1101-4p_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "5AAD4397-6DCF-493A-BD61-3A890F6F3AB2", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1101_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "5EB8A757-7888-4AC2-BE44-B89DB83C6C77", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1109-2p_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "3F2F0A8E-97F6-41AC-BE67-4B2D60F9D36B", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1109-4p_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "BB9229F3-7BCE-46C4-9879-D57B5BAAE44E", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1109_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "B80890A8-E3D3-462C-B125-9E9BC6525B02", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1111x-8p_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "A5A606FE-E6F1-43F9-B1CD-D9DF35FC3573", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1111x_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "0547E196-5991-4C33-823A-342542E9DFD3", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:111x_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "802CBFC1-8A2F-4BF7-A1D3-00622C33BE16", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1120_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "7AFE0FC1-EEBC-42F0-88B0-4AF5B76DDD97", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:1160_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "D916389F-54DB-44CB-91DD-7CE3C7059350", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "6C8AED7C-DDA3-4C29-BB95-6518C02C551A", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "5419CB9F-241F-4431-914F-2659BE27BEA5", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "5720462A-BE6B-4E84-A1A1-01E80BBA86AD", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:4451_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "82225D40-537F-41D2-B1C4-1B7D06466B06", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "E8B60888-6E2B-494E-AC65-83337661EE7D", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr_1000-x:-:*:*:*:*:*:*:*", "matchCriteriaId": "FE2182E7-C813-4966-A36C-E648A9344299", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr_1001:-:*:*:*:*:*:*:*", "matchCriteriaId": "ED7C321E-F083-4AB6-96A0-D6358980441E", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:*", "matchCriteriaId": "09C913FF-63D5-43FB-8B39-598EF436BA5A", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr_1002:-:*:*:*:*:*:*:*", "matchCriteriaId": "E4376E56-A21C-4642-A85D-439C8E21CD7F", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:*", "matchCriteriaId": "444F688F-79D0-4F22-B530-7BD520080B8F", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:*", "matchCriteriaId": "55DD2272-10C2-43B9-9F13-6DC41DBE179B", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:*", "matchCriteriaId": "7428E0A8-1641-47FB-9CA9-34311DEF660D", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr_1013:-:*:*:*:*:*:*:*", "matchCriteriaId": "854D9594-FE84-4E7B-BA21-A3287F2DC302", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr1001-hx:-:*:*:*:*:*:*:*", "matchCriteriaId": "0C24227E-9FF6-4757-A342-958CA4B8BF63", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr1001-hx-rf:-:*:*:*:*:*:*:*", "matchCriteriaId": "9E529335-18D1-4CEC-A8D5-CC1CA33D64F5", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr1001-x-rf:-:*:*:*:*:*:*:*", "matchCriteriaId": "D9FBFB5C-347B-4F73-93BE-4D3137D8F93A", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr1001-x-ws:-:*:*:*:*:*:*:*", "matchCriteriaId": "9F040372-CDAD-4AC4-9B7C-BFF9658B6BF2", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr1002-hx:-:*:*:*:*:*:*:*", "matchCriteriaId": "C33862F1-652A-4F60-BD3E-A6B3733E56A9", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr1002-hx-rf:-:*:*:*:*:*:*:*", "matchCriteriaId": "130205FD-CA31-4E49-B8C4-181840270C70", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr1002-hx-ws:-:*:*:*:*:*:*:*", "matchCriteriaId": "908A56D8-64AF-4813-9D4D-C429C0603A31", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr1002-x-rf:-:*:*:*:*:*:*:*", "matchCriteriaId": "53DAF422-7E0B-44EB-AD8D-4643A9711739", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:asr1002-x-ws:-:*:*:*:*:*:*:*", "matchCriteriaId": "1F7F661E-335C-4123-9363-E2E5D51846C1", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:*", "matchCriteriaId": "1B9ED0E5-CB20-4106-9CF2-8EB587B33543", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:*", "matchCriteriaId": "2B0E620C-8E09-4F7C-A326-26013173B993", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:*", "matchCriteriaId": "FF93F1C8-669F-4ECB-8D81-ECDA7B550175", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:*", "matchCriteriaId": "2E0BA345-B7D7-4975-9199-4DC7875BBFD0", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-l-c:-:*:*:*:*:*:*:*", "matchCriteriaId": "4E9EA95F-4E39-4D9C-8A84-D1F6014A4A40", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_9800-l-f:-:*:*:*:*:*:*:*", "matchCriteriaId": "EA0BC769-C244-41BD-BE80-E67F4E1CDDA4", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200-24p:-:*:*:*:*:*:*:*", "matchCriteriaId": "18736C74-F68F-4D0B-AE2B-4BC1834EF794", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200-24t:-:*:*:*:*:*:*:*", "matchCriteriaId": "D223C2AB-22A4-42B5-8BBB-78E2CBF23B40", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200-48p:-:*:*:*:*:*:*:*", "matchCriteriaId": "BDD3EAA2-8F25-4099-B76F-5ACC3BE34610", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200-48t:-:*:*:*:*:*:*:*", "matchCriteriaId": "AE9BD57F-BDAC-46DD-AF87-8914B29670F2", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-24p-4g:-:*:*:*:*:*:*:*", "matchCriteriaId": "AFCEBFFC-DD60-4CB1-A7F2-9AC09977BA4F", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-24p-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "B9F7B21F-1DAA-45C7-8C24-D3A19F1C5459", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-24pxg-2y:-:*:*:*:*:*:*:*", "matchCriteriaId": "1C4F9918-E075-4F78-AFD7-0BB7FA97C1F6", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-24pxg-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "C7E00A0B-A58E-472F-B107-0FE106751F2D", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-24t-4g:-:*:*:*:*:*:*:*", "matchCriteriaId": "BCB45406-5216-4A11-B8D3-C44639DC26B0", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-24t-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "215D01AE-3767-482A-85C5-3361506F0AC3", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-48p-4g:-:*:*:*:*:*:*:*", "matchCriteriaId": "A06E37A8-166F-4534-9089-D20B1227F4DD", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-48p-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "B9D6DAE3-BAD0-46D8-B899-45B955F532F7", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-48pxg-2y:-:*:*:*:*:*:*:*", "matchCriteriaId": "327167E8-4B65-4F9D-8760-34CDA03887CA", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-48pxg-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "A0DA2253-C6A9-4749-B313-6552628A96F3", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-48t-4g:-:*:*:*:*:*:*:*", "matchCriteriaId": "C925086A-94B9-4FE0-9FEB-3242C1217453", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9200l-48t-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "6EB14B34-4035-41D2-834B-7FB069264207", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-24p:-:*:*:*:*:*:*:*", "matchCriteriaId": "F257D2BE-7618-4B6A-AFCE-6D9D0084FA1D", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-24s:-:*:*:*:*:*:*:*", "matchCriteriaId": "8BA927CE-9D8E-4BC0-9EA6-641E7C4F71B3", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-24t:-:*:*:*:*:*:*:*", "matchCriteriaId": "9A46D298-1685-410E-879C-2EBC45C185AC", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-24u:-:*:*:*:*:*:*:*", "matchCriteriaId": "CA4ACF54-E576-4D8A-A4E6-17A37EEC53DA", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-24ux:-:*:*:*:*:*:*:*", "matchCriteriaId": "196A7C06-8371-479D-973D-591DEB181739", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-48p:-:*:*:*:*:*:*:*", "matchCriteriaId": "EE42511E-9883-4779-A8E5-FC3E16EF2793", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-48s:-:*:*:*:*:*:*:*", "matchCriteriaId": "DB06AD21-91A7-46B8-8F44-683828A5422D", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-48t:-:*:*:*:*:*:*:*", "matchCriteriaId": "5DA169AF-3743-4051-B63B-FF6E1ADCD886", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-48u:-:*:*:*:*:*:*:*", "matchCriteriaId": "7D13CF5B-4482-4C7D-8D6A-E220F3E4F868", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-48un:-:*:*:*:*:*:*:*", "matchCriteriaId": "92134C0A-4E5B-43EF-8439-484DF504C43C", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300-48uxm:-:*:*:*:*:*:*:*", "matchCriteriaId": "26ECF9BD-F632-4A02-8993-C0D44B91289C", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300l-24p-4g:-:*:*:*:*:*:*:*", "matchCriteriaId": "48730DB5-94AF-4BE7-8047-52B8B47CE35A", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300l-24p-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "E3A88142-3284-4C25-8774-36004B5F9087", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300l-24t-4g:-:*:*:*:*:*:*:*", "matchCriteriaId": "8EB76311-4B6D-4897-A683-4244E92BD570", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300l-24t-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "CDDA2975-CDB7-4182-A03E-D34F15CDF6F1", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300l-48p-4g:-:*:*:*:*:*:*:*", "matchCriteriaId": "35B9D0B5-4BE1-490E-9A68-00A3D357BC3D", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300l-48p-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "71FA2F5A-6146-4142-96A8-552118E4BB67", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300l-48t-4g:-:*:*:*:*:*:*:*", "matchCriteriaId": "BEF786D6-F28F-49D8-A15C-BFD0AA934355", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9300l-48t-4x:-:*:*:*:*:*:*:*", "matchCriteriaId": "CA32B0AC-1B0A-4ED8-8532-9C7BE6E059D4", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9404r:-:*:*:*:*:*:*:*", "matchCriteriaId": "1FEFF895-6E4A-4108-BD25-D7DC83154832", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9407r:-:*:*:*:*:*:*:*", "matchCriteriaId": "A485A9A0-2EEC-4C13-846C-0DE2265B2A31", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9410r:-:*:*:*:*:*:*:*", "matchCriteriaId": "3B9F1ACA-9D67-4BF0-A357-40D39A61ED00", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9500-12q:-:*:*:*:*:*:*:*", "matchCriteriaId": "6BFEE45F-C5AC-483D-9DE6-4CEB98D80A0C", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9500-16x:-:*:*:*:*:*:*:*", "matchCriteriaId": "FD6F5BBC-4627-4A3E-B827-3CEE7EE969D0", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9500-24q:-:*:*:*:*:*:*:*", "matchCriteriaId": "8B2E41E2-00CE-42C4-8C91-9307D76F5D7A", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9500-24y4c:-:*:*:*:*:*:*:*", "matchCriteriaId": "98CB2D23-B5F8-4FA9-8431-3B0124CE2140", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9500-32c:-:*:*:*:*:*:*:*", "matchCriteriaId": "E8A8BA9F-3361-43CD-8031-A5DF0AD68BEB", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9500-32qc:-:*:*:*:*:*:*:*", "matchCriteriaId": "6DFE4BB6-FC9A-42B3-B8A0-2610D71BB9B8", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9500-40x:-:*:*:*:*:*:*:*", "matchCriteriaId": "53D13F1D-345D-45D5-9000-DAFE8A85D71B", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:catalyst_c9500-48y4c:-:*:*:*:*:*:*:*", "matchCriteriaId": "8CFB064E-E390-47B5-AA76-5D3D2E368055", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:csr_1000v:*:*:*:*:*:*:*:*", "matchCriteriaId": "A7A99113-21C8-4DC4-865B-BEE7401B7720", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-12x48uq:-:*:*:*:*:*:*:*", "matchCriteriaId": "75310844-0DEA-4F0B-B9DB-AA55AA3EED17", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-12x48ur:-:*:*:*:*:*:*:*", "matchCriteriaId": "28D2AC87-9D6C-4E49-8923-F6B5C73B18F6", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-12x48uz:-:*:*:*:*:*:*:*", "matchCriteriaId": "D0A51E5D-501F-4EDE-8566-A6C217D4C7C3", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-24pd:-:*:*:*:*:*:*:*", "matchCriteriaId": "BFB1635F-48C9-47A4-8284-953DFA0B1C89", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-24pdm:-:*:*:*:*:*:*:*", "matchCriteriaId": "EE619CD8-98F9-4CAC-BFB7-EB4DD84040B9", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-24ps:-:*:*:*:*:*:*:*", "matchCriteriaId": "EE323F9B-C767-4B8E-82C2-1387F29444BC", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-24td:-:*:*:*:*:*:*:*", "matchCriteriaId": "5124B311-935A-4267-B360-08C8F0BE8691", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-24ts:-:*:*:*:*:*:*:*", "matchCriteriaId": "E92A4C9B-B5AA-4112-9136-D6E187057BE7", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48fd:-:*:*:*:*:*:*:*", "matchCriteriaId": "6E328765-1E27-4E50-9DE0-556D4A349151", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48fq:-:*:*:*:*:*:*:*", "matchCriteriaId": "A8528780-0254-4D21-8172-71BD01988608", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48fqm:-:*:*:*:*:*:*:*", "matchCriteriaId": "97203BEC-044F-4263-A4EA-536486BBEC6A", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48fs:-:*:*:*:*:*:*:*", "matchCriteriaId": "C3AAB4D4-6986-4055-B68D-AA9E306DA5BD", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48pd:-:*:*:*:*:*:*:*", "matchCriteriaId": "F821C98D-B8E3-44A9-8534-ACBDD4BEB5F3", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48pq:-:*:*:*:*:*:*:*", "matchCriteriaId": "733850D4-DD9D-40B8-BB7F-FF9C26818FAC", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48ps:-:*:*:*:*:*:*:*", "matchCriteriaId": "276373D2-CB95-43F8-A4C4-5A0E1B0046F7", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48td:-:*:*:*:*:*:*:*", "matchCriteriaId": "77599A2E-3149-4C7B-90A2-C95E4FAAC3E1", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48tq:-:*:*:*:*:*:*:*", "matchCriteriaId": "5A14F739-1643-4425-8C9E-4A7FB831F4B8", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-48ts:-:*:*:*:*:*:*:*", "matchCriteriaId": "3E1D0F90-14C7-404F-9F75-9D9937E489D9", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3650-8x24uq:-:*:*:*:*:*:*:*", "matchCriteriaId": "CCE19812-3A07-4561-BB1A-0B43C11F5FA3", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850:-:*:*:*:*:*:*:*", "matchCriteriaId": "BA292FB5-7589-4E22-8AE1-CEE4E987CD9E", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-12s:-:*:*:*:*:*:*:*", "matchCriteriaId": "3C0BCC2C-20D6-40EB-9334-C83FC5F69A93", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-12x48u:-:*:*:*:*:*:*:*", "matchCriteriaId": "0F3EC00D-ACEA-49DE-A7A8-42CCA6569D2A", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-12xs:-:*:*:*:*:*:*:*", "matchCriteriaId": "1341B21E-49E9-4219-B1B0-592B180D5D09", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-24p:-:*:*:*:*:*:*:*", "matchCriteriaId": "1EAF61B9-CE12-40E9-9DCE-D3411E74BBB3", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-24s:-:*:*:*:*:*:*:*", "matchCriteriaId": "D1DB530A-74B9-43DA-B8E8-A761E6A159F1", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-24t:-:*:*:*:*:*:*:*", "matchCriteriaId": "3B8C8EA0-7767-4CC1-88BE-B678FAFD96C2", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-24u:-:*:*:*:*:*:*:*", "matchCriteriaId": "56929D47-3994-4008-87DA-F64AAB7EB12D", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-24xs:-:*:*:*:*:*:*:*", "matchCriteriaId": "7C0CE864-1B46-4040-87F3-3CFE3517422C", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-24xu:-:*:*:*:*:*:*:*", "matchCriteriaId": "B7EFF383-6194-41C0-A6FE-DBF17D43EDDD", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-48f:-:*:*:*:*:*:*:*", "matchCriteriaId": "BA9254CA-6616-4743-B146-A120D97350A2", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-48p:-:*:*:*:*:*:*:*", "matchCriteriaId": "3D75A217-8CDF-40B5-BB48-D018FFC6BCBA", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-48t:-:*:*:*:*:*:*:*", "matchCriteriaId": "6C1CD87D-3AAA-4474-8C90-26552FF5C90B", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-48u:-:*:*:*:*:*:*:*", "matchCriteriaId": "9AE2EAFB-83D9-4517-9B17-3A6D3D846D9F", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:ws-c3850-48xs:-:*:*:*:*:*:*:*", "matchCriteriaId": "819E8E03-F31D-47BF-9725-6F352924F002", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the Split DNS feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability occurs because the regular expression (regex) engine that is used with the Split DNS feature of affected releases may time out when it processes the DNS name list configuration. An attacker could exploit this vulnerability by trying to resolve an address or hostname that the affected device handles. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition."}, {"lang": "es", "value": "Una vulnerabilidad en la funcionalidad Split DNS de Cisco IOS Software y Cisco IOS XE Software, podr\u00eda permitir a un atacante remoto no autenticado causar la recarga de un dispositivo afectado, resultando en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). La vulnerabilidad ocurre porque el motor de expresi\u00f3n regular (regex) que es usado con la funcionalidad Split DNS de versiones afectadas puede expirar cuando procesa la configuraci\u00f3n de la lista de nombres DNS. Un atacante podr\u00eda explotar esta vulnerabilidad al intentar resolver una direcci\u00f3n o hostname que maneja el dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el dispositivo se recargue, resultando en una condici\u00f3n de DoS."}], "id": "CVE-2020-3408", "lastModified": "2023-05-23T13:55:46.380", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "ykramarz@cisco.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-09-24T18:15:18.260", "references": [{"source": "ykramarz@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-splitdns-SPWqpdGW"}], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-185"}], "source": "ykramarz@cisco.com", "type": "Secondary"}]}

{}