{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-20187","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","state":"PUBLISHED","assignerShortName":"cisco","dateReserved":"2022-10-27T18:47:50.364Z","datePublished":"2023-09-27T17:19:44.488Z","dateUpdated":"2024-08-02T09:05:36.976Z"},"containers":{"cna":{"providerMetadata":{"orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco","dateUpdated":"2024-01-25T16:57:52.741Z"},"descriptions":[{"lang":"en","value":"A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. \r\n\r This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition."}],"affected":[{"vendor":"Cisco","product":"Cisco IOS XE Software","versions":[{"version":"3.7.1S","status":"affected"},{"version":"3.7.2S","status":"affected"},{"version":"3.7.3S","status":"affected"},{"version":"3.7.4S","status":"affected"},{"version":"3.7.5S","status":"affected"},{"version":"3.7.6S","status":"affected"},{"version":"3.7.7S","status":"affected"},{"version":"3.7.2tS","status":"affected"},{"version":"3.8.0S","status":"affected"},{"version":"3.8.1S","status":"affected"},{"version":"3.8.2S","status":"affected"},{"version":"3.9.1S","status":"affected"},{"version":"3.9.0S","status":"affected"},{"version":"3.9.2S","status":"affected"},{"version":"3.10.0S","status":"affected"},{"version":"3.10.1S","status":"affected"},{"version":"3.10.2S","status":"affected"},{"version":"3.10.3S","status":"affected"},{"version":"3.10.4S","status":"affected"},{"version":"3.10.5S","status":"affected"},{"version":"3.10.6S","status":"affected"},{"version":"3.10.7S","status":"affected"},{"version":"3.10.1xbS","status":"affected"},{"version":"3.10.8S","status":"affected"},{"version":"3.10.8aS","status":"affected"},{"version":"3.10.9S","status":"affected"},{"version":"3.10.10S","status":"affected"},{"version":"3.11.1S","status":"affected"},{"version":"3.11.2S","status":"affected"},{"version":"3.11.0S","status":"affected"},{"version":"3.11.3S","status":"affected"},{"version":"3.11.4S","status":"affected"},{"version":"3.12.0S","status":"affected"},{"version":"3.12.1S","status":"affected"},{"version":"3.12.2S","status":"affected"},{"version":"3.12.3S","status":"affected"},{"version":"3.12.4S","status":"affected"},{"version":"3.13.0S","status":"affected"},{"version":"3.13.1S","status":"affected"},{"version":"3.13.2S","status":"affected"},{"version":"3.13.3S","status":"affected"},{"version":"3.13.4S","status":"affected"},{"version":"3.13.5S","status":"affected"},{"version":"3.13.2aS","status":"affected"},{"version":"3.13.5aS","status":"affected"},{"version":"3.13.6S","status":"affected"},{"version":"3.13.7S","status":"affected"},{"version":"3.13.6aS","status":"affected"},{"version":"3.13.8S","status":"affected"},{"version":"3.13.9S","status":"affected"},{"version":"3.13.10S","status":"affected"},{"version":"3.14.0S","status":"affected"},{"version":"3.14.1S","status":"affected"},{"version":"3.14.2S","status":"affected"},{"version":"3.14.3S","status":"affected"},{"version":"3.14.4S","status":"affected"},{"version":"3.15.0S","status":"affected"},{"version":"3.15.1S","status":"affected"},{"version":"3.15.2S","status":"affected"},{"version":"3.15.3S","status":"affected"},{"version":"3.15.4S","status":"affected"},{"version":"3.16.0S","status":"affected"},{"version":"3.16.1aS","status":"affected"},{"version":"3.16.2S","status":"affected"},{"version":"3.16.3S","status":"affected"},{"version":"3.16.2bS","status":"affected"},{"version":"3.16.4aS","status":"affected"},{"version":"3.16.4bS","status":"affected"},{"version":"3.16.5S","status":"affected"},{"version":"3.16.6S","status":"affected"},{"version":"3.16.7S","status":"affected"},{"version":"3.16.6bS","status":"affected"},{"version":"3.16.7aS","status":"affected"},{"version":"3.16.7bS","status":"affected"},{"version":"3.16.8S","status":"affected"},{"version":"3.16.9S","status":"affected"},{"version":"3.16.10S","status":"affected"},{"version":"3.17.0S","status":"affected"},{"version":"3.17.1S","status":"affected"},{"version":"3.17.2S","status":"affected"},{"version":"3.17.1aS","status":"affected"},{"version":"3.17.3S","status":"affected"},{"version":"3.17.4S","status":"affected"},{"version":"16.2.1","status":"affected"},{"version":"16.2.2","status":"affected"},{"version":"16.3.1","status":"affected"},{"version":"16.3.2","status":"affected"},{"version":"16.3.3","status":"affected"},{"version":"16.3.1a","status":"affected"},{"version":"16.3.4","status":"affected"},{"version":"16.3.5","status":"affected"},{"version":"16.3.6","status":"affected"},{"version":"16.3.7","status":"affected"},{"version":"16.3.8","status":"affected"},{"version":"16.3.9","status":"affected"},{"version":"16.3.10","status":"affected"},{"version":"16.3.11","status":"affected"},{"version":"16.4.1","status":"affected"},{"version":"16.4.2","status":"affected"},{"version":"16.4.3","status":"affected"},{"version":"16.5.1","status":"affected"},{"version":"16.5.1b","status":"affected"},{"version":"16.5.2","status":"affected"},{"version":"16.5.3","status":"affected"},{"version":"16.6.1","status":"affected"},{"version":"16.6.2","status":"affected"},{"version":"16.6.3","status":"affected"},{"version":"16.6.4","status":"affected"},{"version":"16.6.5","status":"affected"},{"version":"16.6.6","status":"affected"},{"version":"16.6.7","status":"affected"},{"version":"16.6.8","status":"affected"},{"version":"16.6.9","status":"affected"},{"version":"16.6.10","status":"affected"},{"version":"16.7.1","status":"affected"},{"version":"16.7.2","status":"affected"},{"version":"16.7.3","status":"affected"},{"version":"16.8.1","status":"affected"},{"version":"16.8.1s","status":"affected"},{"version":"16.8.2","status":"affected"},{"version":"16.8.3","status":"affected"},{"version":"16.9.1","status":"affected"},{"version":"16.9.2","status":"affected"},{"version":"16.9.1s","status":"affected"},{"version":"16.9.3","status":"affected"},{"version":"16.9.4","status":"affected"},{"version":"16.9.5","status":"affected"},{"version":"16.9.6","status":"affected"},{"version":"16.9.7","status":"affected"},{"version":"16.9.8","status":"affected"},{"version":"16.10.1","status":"affected"},{"version":"16.10.1a","status":"affected"},{"version":"16.10.1s","status":"affected"},{"version":"16.10.1e","status":"affected"},{"version":"16.10.2","status":"affected"},{"version":"16.10.3","status":"affected"},{"version":"16.11.1","status":"affected"},{"version":"16.11.1a","status":"affected"},{"version":"16.11.2","status":"affected"},{"version":"16.11.1s","status":"affected"},{"version":"16.12.1","status":"affected"},{"version":"16.12.1s","status":"affected"},{"version":"16.12.1a","status":"affected"},{"version":"16.12.1c","status":"affected"},{"version":"16.12.2","status":"affected"},{"version":"16.12.3","status":"affected"},{"version":"16.12.8","status":"affected"},{"version":"16.12.2s","status":"affected"},{"version":"16.12.4","status":"affected"},{"version":"16.12.3s","status":"affected"},{"version":"16.12.5","status":"affected"},{"version":"16.12.6","status":"affected"},{"version":"16.12.7","status":"affected"},{"version":"16.12.10a","status":"affected"},{"version":"17.1.1","status":"affected"},{"version":"17.1.1s","status":"affected"},{"version":"17.1.1t","status":"affected"},{"version":"17.1.3","status":"affected"},{"version":"17.2.1","status":"affected"},{"version":"17.2.1r","status":"affected"},{"version":"17.2.1v","status":"affected"},{"version":"17.2.2","status":"affected"},{"version":"17.2.3","status":"affected"},{"version":"17.3.1","status":"affected"},{"version":"17.3.2","status":"affected"},{"version":"17.3.3","status":"affected"},{"version":"17.3.1a","status":"affected"},{"version":"17.3.4","status":"affected"},{"version":"17.3.5","status":"affected"},{"version":"17.3.4a","status":"affected"},{"version":"17.3.6","status":"affected"},{"version":"17.3.7","status":"affected"},{"version":"17.4.1","status":"affected"},{"version":"17.4.2","status":"affected"},{"version":"17.4.1a","status":"affected"},{"version":"17.4.1b","status":"affected"},{"version":"17.5.1","status":"affected"},{"version":"17.5.1a","status":"affected"},{"version":"17.5.1b","status":"affected"},{"version":"17.5.1c","status":"affected"},{"version":"17.6.1","status":"affected"},{"version":"17.6.2","status":"affected"},{"version":"17.6.1a","status":"affected"},{"version":"17.6.3","status":"affected"},{"version":"17.6.3a","status":"affected"},{"version":"17.6.4","status":"affected"},{"version":"17.6.5","status":"affected"},{"version":"17.6.5a","status":"affected"},{"version":"17.7.1","status":"affected"},{"version":"17.7.1a","status":"affected"},{"version":"17.7.2","status":"affected"},{"version":"17.10.1","status":"affected"},{"version":"17.10.1a","status":"affected"},{"version":"17.8.1","status":"affected"},{"version":"17.8.1a","status":"affected"},{"version":"17.9.1","status":"affected"},{"version":"17.9.2","status":"affected"},{"version":"17.9.1a","status":"affected"},{"version":"17.9.3","status":"affected"},{"version":"17.9.2a","status":"affected"},{"version":"17.9.3a","status":"affected"},{"version":"17.11.1","status":"affected"},{"version":"17.11.1a","status":"affected"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Use of Out-of-range Pointer Offset","type":"cwe","cweId":"CWE-823"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-mlre-H93FswRz","name":"cisco-sa-mlre-H93FswRz"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"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."}],"source":{"advisory":"cisco-sa-mlre-H93FswRz","discovery":"EXTERNAL","defects":["CSCwe91722"]}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T09:05:36.976Z"},"title":"CVE Program Container","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-mlre-H93FswRz","name":"cisco-sa-mlre-H93FswRz","tags":["x_transferred"]}]}]}}