High
Security advisory
ProFTPD before 1.3.6b and 1.3.7rc before 1.3.7rc2 allows remote unauthenticated denial-of-service due to incorrect handling of overly long commands because main.c in a child process enters an infinite loop.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-18217
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:38 UTC · Revision 1
Source evidence
ProFTPD before 1.3.6b and 1.3.7rc before 1.3.7rc2 allows remote unauthenticated denial-of-service due to incorrect handling of overly long commands because main.c in a child process enters an infinite loop.
osv:CVE-2019-18217
Complete source record
{
"id": "3e6f319987077382c67a4c993f6168867fb997fa063ec377cc0e3e079d440db9",
"url": "https://osv.dev/vulnerability/CVE-2019-18217",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-18217",
"summary": "ProFTPD before 1.3.6b and 1.3.7rc before 1.3.7rc2 allows remote unauthenticated denial-of-service due to incorrect handling of overly long commands because main.c in a child process enters an infinite loop.",
"evidence": "osv:CVE-2019-18217",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-18217",
"aliases": [
"CVE-2019-18217"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/proftpd/proftpd",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "46a4c089eec7dfc9b7c168c98bdb06371eb694ef"
},
{
"introduced": "14f155e2f194f75d05a1656d13f4228257ba3091"
},
{
"last_affected": "6b70ebfc898c0d8f19b600e0b404ee21d46da425"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.3.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:proftpd:proftpd:1.3.6:-:*:*:*:*:*:*",
"range": [
{
"introduced": "1.3.6-NA"
},
{
"last_affected": "1.3.6-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:proftpd:proftpd:1.3.6:a:*:*:*:*:*:*",
"range": [
{
"introduced": "1.3.6-a"
},
{
"last_affected": "1.3.6-a"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "1.3.6-rc1"
},
{
"last_affected": "1.3.6-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:proftpd:proftpd:1.3.6:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "1.3.6-rc2"
},
{
"last_affected": "1.3.6-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:proftpd:proftpd:1.3.6:rc3:*:*:*:*:*:*",
"range": [
{
"introduced": "1.3.6-rc3"
},
{
"last_affected": "1.3.6-rc3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:proftpd:proftpd:1.3.6:rc4:*:*:*:*:*:*",
"range": [
{
"introduced": "1.3.6-rc4"
},
{
"last_affected": "1.3.6-rc4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:proftpd:proftpd:1.3.7:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "1.3.7-rc1"
},
{
"last_affected": "1.3.7-rc1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"1.3.6-NA",
"1.3.6-rc1",
"1.3.6-rc2",
"1.3.6-rc3",
"1.3.6-rc4",
"1.3.7-rc1",
"v1.3.7rc1",
"v1.3.6",
"v1.3.5e",
"v1.3.5d",
"v1.3.6rc4",
"v1.3.5c",
"v1.3.6rc3",
"v1.3.5b",
"v1.3.6rc2",
"v1.3.5a",
"v1.3.6rc1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-18217.json"
}
}
],
"modified": "2026-10-20T10:50:49.655519507Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/pdf/ssa-940889.pdf",
"https://lists.debian.org/debian-lts-announce/2019/10/msg00036.html",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJDQRVZTILBX4BUCTIRKP2WBHDHDCJR5/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RB2FPAWDWXT5ALAFIC5Y3RSEMXSFL6H2/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YLRPYEEMQJVAXO2SXRGOQ4HBFEEPCNXG/",
"https://seclists.org/bugtraq/2019/Nov/7",
"https://github.com/proftpd/proftpd/blob/1.3.6/NEWS",
"https://github.com/proftpd/proftpd/blob/1.3.6/RELEASE_NOTES",
"https://github.com/proftpd/proftpd/blob/master/NEWS",
"https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES",
"https://security.gentoo.org/glsa/202003-35",
"https://www.debian.org/security/2019/dsa-4559",
"https://github.com/proftpd/proftpd/issues/846"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-18217",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 382216,
"published_at": "2019-10-21T04:15:10.433+00:00"
}