{
   document: {
      aggregate_severity: {
         text: "HIGH",
      },
      category: "csaf_security_advisory",
      csaf_version: "2.0",
      distribution: {
         tlp: {
            label: "GREEN",
            url: "https://www.first.org/tlp/",
         },
      },
      lang: "en-US",
      publisher: {
         category: "vendor",
         name: "Open-Xchange GmbH",
         namespace: "https://open-xchange.com/",
      },
      references: [
         {
            category: "self",
            summary: "Canonical CSAF document",
            url: "https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2024/oxdc-adv-2024-0003.json",
         },
         {
            category: "self",
            summary: "Markdown representation",
            url: "https://documentation.open-xchange.com/dovecot/security/advisories/md/2024/oxdc-adv-2024-0003.md",
         },
         {
            category: "self",
            summary: "HTML representation",
            url: "https://documentation.open-xchange.com/dovecot/security/advisories/html/2024/oxdc-adv-2024-0003.html",
         },
         {
            category: "self",
            summary: "Plain-text representation",
            url: "https://documentation.open-xchange.com/dovecot/security/advisories/txt/2024/oxdc-adv-2024-0003.txt",
         },
      ],
      title: "OX Dovecot Pro Security Advisory OXDC-ADV-2024-0003",
      tracking: {
         current_release_date: "2024-09-10T00:00:00+00:00",
         generator: {
            date: "2024-09-10T14:45:00+00:00",
            engine: {
               name: "OX CSAF",
               version: "1.0.0",
            },
         },
         id: "OXDC-ADV-2024-0003",
         initial_release_date: "2024-09-10T00:00:00+02:00",
         revision_history: [
            {
               date: "2024-09-10T00:00:00+02:00",
               number: "1",
               summary: "Initial release",
            },
            {
               date: "2024-09-10T00:00:00+00:00",
               number: "2",
               summary: "Public release",
            },
         ],
         status: "final",
         version: "2",
      },
   },
   product_tree: {
      branches: [
         {
            branches: [
               {
                  branches: [
                     {
                        category: "product_version",
                        name: "2.3.21",
                        product: {
                           name: "OX Dovecot Pro core 2.3.21",
                           product_id: "OXDC-CORE_2.3.21",
                           product_identification_helper: {
                              cpe: "cpe:2.3:a:open-xchange:dovecot:2.3.21:*:*:*:*:*:*:*",
                           },
                        },
                     },
                     {
                        category: "product_version",
                        name: "2.3.21.1",
                        product: {
                           name: "OX Dovecot Pro core 2.3.21.1",
                           product_id: "OXDC-CORE_2.3.21.1",
                           product_identification_helper: {
                              cpe: "cpe:2.3:a:open-xchange:dovecot:2.3.21.1:*:*:*:*:*:*:*",
                           },
                        },
                     },
                     {
                        category: "product_version",
                        name: "3.0.0",
                        product: {
                           name: "OX Dovecot Pro core 3.0.0",
                           product_id: "OXDC-CORE_3.0.0",
                           product_identification_helper: {
                              cpe: "cpe:2.3:a:open-xchange:dovecot:3.0.0:*:*:*:*:*:*:*",
                           },
                        },
                     },
                  ],
                  category: "product_name",
                  name: "OX Dovecot Pro core",
               },
            ],
            category: "vendor",
            name: "Open-Xchange GmbH",
         },
      ],
   },
   vulnerabilities: [
      {
         cve: "CVE-2024-23185",
         cwe: {
            id: "CWE-770",
            name: "Allocation of Resources Without Limits or Throttling",
         },
         discovery_date: "2024-01-31T11:55:28+01:00",
         ids: [
            {
               system_name: "JIRA OX Bug",
               text: "DOV-6601",
            },
         ],
         notes: [
            {
               category: "description",
               text: "Very large headers can cause resource exhaustion when parsing message. The message-parser normally reads reasonably sized chunks of the message. However, when it feeds them to message-header-parser, it starts building up \"full_value\" buffer out of the smaller chunks. The full_value buffer has no size limit, so large headers can cause large memory usage. It doesn't matter whether it's a single long header line, or a single header split into multiple lines. This bug exists in all Dovecot versions.",
            },
         ],
         product_status: {
            first_fixed: [
               "OXDC-CORE_2.3.21.1",
               "OXDC-CORE_3.0.0",
            ],
            last_affected: [
               "OXDC-CORE_2.3.21",
            ],
         },
         remediations: [
            {
               category: "vendor_fix",
               date: "2024-08-21T08:59:54+02:00",
               details: "One can implement restrictions on headers on MTA component preceding Dovecot.",
               product_ids: [
                  "OXDC-CORE_2.3.21",
               ],
            },
         ],
         scores: [
            {
               cvss_v3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 7.5,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  version: "3.1",
               },
               products: [
                  "OXDC-CORE_2.3.21",
               ],
            },
         ],
         threats: [
            {
               category: "impact",
               details: "Incoming mails typically have some size limits set by MTA, so even largest possible header size may still fit into Dovecot's vsz_limit. So attackers probably can't DoS a victim user this way. A user could APPEND larger mails though, allowing them to DoS themselves (although maybe cause some memory issues for the backend in general).",
            },
            {
               category: "exploit_status",
               details: "No publicly available exploits are known.",
            },
         ],
         title: "Message headers have no size limit when parsing",
      },
   ],
}