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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2017-14230

In the mboxlist_do_find function in imap/mboxlist.c in Cyrus IMAP before 3.0.4, an off-by-one error in prefix calculation for the LIST command caused use of uninitialized memory, which might allow remote attackers to obtain sensitive information or cause a denial of service (daemon crash) via a 'LIST "" "Other Users"' command.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2017-14230
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 12:11 UTC · Revision 1

Source evidence

CVE-2017-14230

core-osv · Original source

Published 10 Sept 2017, 07:29 UTC

In the mboxlist_do_find function in imap/mboxlist.c in Cyrus IMAP before 3.0.4, an off-by-one error in prefix calculation for the LIST command caused use of uninitialized memory, which might allow remote attackers to obtain sensitive information or cause a denial of service (daemon crash) via a 'LIST "" "Other Users"' command.

osv:CVE-2017-14230
Complete source record
{
  "id": "fe1154a21f5258a54f0c41473a9f32d8b57c4b5eb72cd9ad201ac19bc4193af7",
  "url": "https://osv.dev/vulnerability/CVE-2017-14230",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-14230",
    "summary": "In the mboxlist_do_find function in imap/mboxlist.c in Cyrus IMAP before 3.0.4, an off-by-one error in prefix calculation for the LIST command caused use of uninitialized memory, which might allow remote attackers to obtain sensitive information or cause a denial of service (daemon crash) via a 'LIST \"\" \"Other Users\"' command.",
    "evidence": "osv:CVE-2017-14230",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2017-14230",
      "aliases": [
        "CVE-2017-14230"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cyrusimap/cyrus-imapd",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "1b4c53fe2193c72657b6108ec2e44e3e20bee22c"
                },
                {
                  "fixed": "6bd33275368edfa71ae117de895488584678ac79"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:cyrus:imap:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.0.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6bd33275368edfa71ae117de895488584678ac79"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "cyrus-imapd-3.0.3",
            "cyrus-imapd-3.0.2",
            "cyrus-imapd-3.0.1",
            "cyrus-imapd-3.0.0",
            "cyrus-imapd-3.0.0-rc4",
            "cyrus-imapd-3.0.0-rc3",
            "cyrus-imapd-3.0.0-rc2",
            "cyrus-imapd-3.0.0-rc1",
            "cyrus-imapd-3.0.0-beta6",
            "cyrus-imapd-3.0.0-beta5",
            "cyrus-imapd-3.0.0-beta4",
            "cyrus-imapd-3.0.0-beta3",
            "cyrus-imapd-3.0.0-beta2",
            "cyrus-imapd-3.0.0-beta1",
            "posttab",
            "pretab",
            "cyrus-imapd-2.5-snapshot-autoconf-and-automake",
            "cyrus-imapd-2.4.2",
            "cyrus-imapd-2.4.1",
            "cyrus-imapd-2.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-14230.json",
            "vanir_signatures": [
              {
                "id": "CVE-2017-14230-c356bb58",
                "digest": {
                  "length": 4774,
                  "function_hash": "318003610013149923191349096931759050144"
                },
                "source": "https://github.com/cyrusimap/cyrus-imapd/commit/6bd33275368edfa71ae117de895488584678ac79",
                "target": {
                  "file": "imap/mboxlist.c",
                  "function": "mboxlist_do_find"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2017-14230-eb6e0977",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "303224277919733571194830660370096213491",
                    "233891236620404226887763782120200254053",
                    "236590487059679711452472757449154608425",
                    "102894069614395639556191154355283669943"
                  ]
                },
                "source": "https://github.com/cyrusimap/cyrus-imapd/commit/6bd33275368edfa71ae117de895488584678ac79",
                "target": {
                  "file": "imap/mboxlist.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:17:05Z"
          }
        }
      ],
      "modified": "2026-10-20T13:17:05.046639923Z",
      "provider": "osv",
      "references": [
        "https://lists.andrew.cmu.edu/pipermail/cyrus-announce/2017-September/000145.html",
        "https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.4.html",
        "https://github.com/cyrusimap/cyrus-imapd/issues/2132",
        "https://github.com/cyrusimap/cyrus-imapd/commit/6bd33275368edfa71ae117de895488584678ac79"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-14230",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387442,
  "published_at": "2017-09-10T07:29:00.177+00:00"
}