{"id":"CVE-2018-0136","state":"PUBLISHED","title":"A vulnerability in the IPv6 subsystem of Cisco IOS XR Software Release 5.3.4 for the Cisco Aggregation Services Router (ASR) 9000 Series could allow an unauthenticated, remote atta","description":"A vulnerability in the IPv6 subsystem of Cisco IOS XR Software Release 5.3.4 for the Cisco Aggregation Services Router (ASR) 9000 Series could allow an unauthenticated, remote attacker to trigger a reload of one or more Trident-based line cards, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect handling of IPv6 packets with a fragment header extension. An attacker could exploit this vulnerability by sending IPv6 packets designed to trigger the issue either to or through the Trident-based line card. A successful exploit could allow the attacker to trigger a reload of Trident-based line cards, resulting in a DoS during the period of time the line card takes to restart. This vulnerability affects Cisco Aggregation Services Router (ASR) 9000 Series when the following conditions are met: The router is running Cisco IOS XR Software Release 5.3.4, and the router has installed Trident-based line cards that have IPv6 configured. A software maintenance upgrade (SMU) has been made available that addresses this vulnerability. The fix has also been incorporated into service pack 7 for Cisco IOS XR Software Release 5.3.4. Cisco Bug IDs: CSCvg46800.","publishedAt":"2018-01-31T20:00:00.000Z","updatedAt":"2024-12-02T21:24:47.666Z","severity":null,"assigner":"cisco","products":["n/a Cisco Aggregation Services Router 9000 Series"],"affected":[{"vendor":"n/a","product":"Cisco Aggregation Services Router 9000 Series","versions":[{"version":"Cisco Aggregation Services Router 9000 Series","status":"affected"}]}],"references":["http://www.securityfocus.com/bid/102905","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180131-ipv6","http://www.securitytracker.com/id/1040315"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T19:44:03.729Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2018/0xxx/CVE-2018-0136.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2018-0136","state":"PUBLISHED","datePublished":"2018-01-31T20:00:00.000Z","dateUpdated":"2024-12-02T21:24:47.666Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2017-11-27T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability in the IPv6 subsystem of Cisco IOS XR Software Release 5.3.4 for the Cisco Aggregation Services Router (ASR) 9000 Series could allow an unauthenticated, remote attacker to trigger a reload of one or more Trident-based line cards, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect handling of IPv6 packets with a fragment header extension. An attacker could exploit this vulnerability by sending IPv6 packets designed to trigger the issue either to or through the Trident-based line card. A successful exploit could allow the attacker to trigger a reload of Trident-based line cards, resulting in a DoS during the period of time the line card takes to restart. This vulnerability affects Cisco Aggregation Services Router (ASR) 9000 Series when the following conditions are met: The router is running Cisco IOS XR Software Release 5.3.4, and the router has installed Trident-based line cards that have IPv6 configured. A software maintenance upgrade (SMU) has been made available that addresses this vulnerability. The fix has also been incorporated into service pack 7 for Cisco IOS XR Software Release 5.3.4. Cisco Bug IDs: CSCvg46800."}],"affected":[{"vendor":"n/a","product":"Cisco Aggregation Services Router 9000 Series","versions":[{"version":"Cisco Aggregation Services Router 9000 Series","status":"affected"}]}],"references":[{"url":"http://www.securityfocus.com/bid/102905","name":"102905","tags":["vdb-entry","x_refsource_BID"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180131-ipv6","tags":["x_refsource_CONFIRM"]},{"url":"http://www.securitytracker.com/id/1040315","name":"1040315","tags":["vdb-entry","x_refsource_SECTRACK"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"cisco","dateUpdated":"2018-02-03T10:57:01.000Z","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633"},"datePublic":"2018-01-31T00:00:00.000Z","x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"psirt@cisco.com","ID":"CVE-2018-0136","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Cisco Aggregation Services Router 9000 Series","version":{"version_data":[{"version_value":"Cisco Aggregation Services Router 9000 Series"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A vulnerability in the IPv6 subsystem of Cisco IOS XR Software Release 5.3.4 for the Cisco Aggregation Services Router (ASR) 9000 Series could allow an unauthenticated, remote attacker to trigger a reload of one or more Trident-based line cards, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect handling of IPv6 packets with a fragment header extension. An attacker could exploit this vulnerability by sending IPv6 packets designed to trigger the issue either to or through the Trident-based line card. A successful exploit could allow the attacker to trigger a reload of Trident-based line cards, resulting in a DoS during the period of time the line card takes to restart. This vulnerability affects Cisco Aggregation Services Router (ASR) 9000 Series when the following conditions are met: The router is running Cisco IOS XR Software Release 5.3.4, and the router has installed Trident-based line cards that have IPv6 configured. A software maintenance upgrade (SMU) has been made available that addresses this vulnerability. The fix has also been incorporated into service pack 7 for Cisco IOS XR Software Release 5.3.4. Cisco Bug IDs: CSCvg46800."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-20"}]}]},"references":{"reference_data":[{"name":"102905","refsource":"BID","url":"http://www.securityfocus.com/bid/102905"},{"name":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180131-ipv6","refsource":"CONFIRM","url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180131-ipv6"},{"name":"1040315","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1040315"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.securityfocus.com/bid/102905","name":"102905","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180131-ipv6","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.securitytracker.com/id/1040315","name":"1040315","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T03:14:16.885Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-12-02T19:11:34.315844Z","id":"CVE-2018-0136","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-12-02T21:24:47.666Z"}}]}}}