Critical
Security advisory
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
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"
}