UnratedFix available
libio-socket-ssl-perl — security advisory
The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.
- Products
- libio-socket-ssl-perl
- Affected versions
- Not specified
- Fixed versions
- 1.30-1
- CVEs
- CVE-2009-3024
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:42 UTC · Revision 1
Source evidence
The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.
osv:DEBIAN-CVE-2009-3024
libio-socket-ssl-perl
Fixed versions: 1.30-1
libio-socket-ssl-perl
Fixed versions: 1.30-1
libio-socket-ssl-perl
Fixed versions: 1.30-1
Complete source record
{
"id": "dd69f5944247e20cb8f16acffd138b13b543bc6bb16a21966917f3a8b7e17c50",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2009-3024",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2009-3024",
"summary": "The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.",
"evidence": "osv:DEBIAN-CVE-2009-3024",
"products": [
{
"name": {
"value": "libio-socket-ssl-perl",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.30-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libio-socket-ssl-perl",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.30-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libio-socket-ssl-perl",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.30-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2009-3024",
"aliases": [
"DEBIAN-CVE-2009-3024"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.30-1"
}
]
}
],
"package": {
"name": "libio-socket-ssl-perl",
"purl": "pkg:deb/debian/libio-socket-ssl-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-3024.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.30-1"
}
]
}
],
"package": {
"name": "libio-socket-ssl-perl",
"purl": "pkg:deb/debian/libio-socket-ssl-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-3024.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.30-1"
}
]
}
],
"package": {
"name": "libio-socket-ssl-perl",
"purl": "pkg:deb/debian/libio-socket-ssl-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-3024.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T17:47:28.536272418Z",
"provider": "osv",
"upstream": [
"CVE-2009-3024"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2009-3024"
]
},
"related_cves": [
{
"value": "CVE-2009-3024",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 417118,
"published_at": "2009-08-31T20:30:01.093+00:00"
}