{"id":"CVE-2020-27720","state":"PUBLISHED","title":"On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG ena","description":"On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG enabled, and dag-ipv6-prefix-len configured with a value less than the default of 128, an undisclosed traffic pattern may cause the Traffic Management Microkernel (TMM) to restart.","publishedAt":"2020-12-24T15:15:03.000Z","updatedAt":"2024-08-04T16:18:45.659Z","severity":null,"assigner":"f5","products":["n/a BIG-IP LTM/CGNAT"],"affected":[{"vendor":"n/a","product":"BIG-IP LTM/CGNAT","versions":[{"version":"16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.5","status":"affected"}]}],"references":["https://support.f5.com/csp/article/K04048104"],"weaknesses":[],"ingestedAt":"2026-10-29T19:47:11.046Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/27xxx/CVE-2020-27720.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-27720","state":"PUBLISHED","datePublished":"2020-12-24T15:15:03.000Z","dateUpdated":"2024-08-04T16:18:45.659Z","assignerShortName":"f5","assignerOrgId":"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab","dateReserved":"2020-10-26T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG enabled, and dag-ipv6-prefix-len configured with a value less than the default of 128, an undisclosed traffic pattern may cause the Traffic Management Microkernel (TMM) to restart."}],"affected":[{"vendor":"n/a","product":"BIG-IP LTM/CGNAT","versions":[{"version":"16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.5","status":"affected"}]}],"references":[{"url":"https://support.f5.com/csp/article/K04048104","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"description":"DoS","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"f5","dateUpdated":"2020-12-24T15:15:03.000Z","orgId":"9dacffd4-cb11-413f-8451-fbbfd4ddc0ab"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"f5sirt@f5.com","ID":"CVE-2020-27720","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"BIG-IP LTM/CGNAT","version":{"version_data":[{"version_value":"16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.5"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG enabled, and dag-ipv6-prefix-len configured with a value less than the default of 128, an undisclosed traffic pattern may cause the Traffic Management Microkernel (TMM) to restart."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"DoS"}]}]},"references":{"reference_data":[{"name":"https://support.f5.com/csp/article/K04048104","refsource":"MISC","url":"https://support.f5.com/csp/article/K04048104"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://support.f5.com/csp/article/K04048104","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T16:18:45.659Z"}}]}}}