{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-03T21:33:15.798Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://datatracker.ietf.org/doc/draft-ietf-v6ops-ra-guard/08/",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://standards.ieee.org/ieee/802.2/1048/",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://kb.cert.org/vuls/id/855201",
               },
               {
                  tags: [
                     "x_transferred",
                  ],
                  url: "https://blog.champtar.fr/VLAN0_LLC_SNAP/",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               product: "802.2",
               vendor: "IEEE",
               versions: [
                  {
                     lessThanOrEqual: "802.2h-1997",
                     status: "affected",
                     version: "802.2h-1997",
                     versionType: "custom",
                  },
               ],
            },
            {
               product: "draft-ietf-v6ops-ra-guard-08",
               vendor: "IETF",
               versions: [
                  {
                     lessThanOrEqual: "08",
                     status: "affected",
                     version: "08",
                     versionType: "custom",
                  },
               ],
            },
         ],
         credits: [
            {
               lang: "en",
               value: "Etienne Champetier (@champtar) <champetier.etienne@gmail.com>",
            },
         ],
         datePublic: "2022-09-27T00:00:00",
         descriptions: [
            {
               lang: "en",
               value: "Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length and Ethernet to Wifi frame conversion (and optionally VLAN0 headers).",
            },
         ],
         problemTypes: [
            {
               descriptions: [
                  {
                     cweId: "CWE-130",
                     description: "CWE-130 Improper Handling of Length Parameter",
                     lang: "en",
                     type: "CWE",
                  },
               ],
            },
            {
               descriptions: [
                  {
                     cweId: "CWE-290",
                     description: "CWE-290: Authentication Bypass by Spoofing",
                     lang: "en",
                     type: "CWE",
                  },
               ],
            },
         ],
         providerMetadata: {
            dateUpdated: "2022-10-12T00:00:00",
            orgId: "37e5125f-f79b-445b-8fad-9564f167944b",
            shortName: "certcc",
         },
         references: [
            {
               url: "https://datatracker.ietf.org/doc/draft-ietf-v6ops-ra-guard/08/",
            },
            {
               url: "https://standards.ieee.org/ieee/802.2/1048/",
            },
            {
               url: "https://kb.cert.org/vuls/id/855201",
            },
            {
               url: "https://blog.champtar.fr/VLAN0_LLC_SNAP/",
            },
         ],
         source: {
            discovery: "EXTERNAL",
         },
         title: "L2 network filtering bypass using stacked VLAN0 and LLC/SNAP headers with an invalid length during Ethernet to Wifi frame translation",
      },
   },
   cveMetadata: {
      assignerOrgId: "37e5125f-f79b-445b-8fad-9564f167944b",
      assignerShortName: "certcc",
      cveId: "CVE-2021-27862",
      datePublished: "2022-09-27T18:40:14.712076Z",
      dateReserved: "2021-03-01T00:00:00",
      dateUpdated: "2024-09-16T20:43:01.727Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
}