Medium
Security advisory
GitLab 9.4.x before 9.4.2 does not support LDAP SSL certificate verification, but a verify_certificates LDAP option was mentioned in the 9.4 release announcement. This issue occurred because code was not merged. This is related to use of the omniauth-ldap library and the gitlab_omniauth-ldap gem.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-17716
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:17 UTC · Revision 1
Source evidence
GitLab 9.4.x before 9.4.2 does not support LDAP SSL certificate verification, but a verify_certificates LDAP option was mentioned in the 9.4 release announcement. This issue occurred because code was not merged. This is related to use of the omniauth-ldap library and the gitlab_omniauth-ldap gem.
osv:CVE-2017-17716
Complete source record
{
"id": "dd97818ef80b83ac1c3a442935a9f9300a2cf0fa83830f1184002df4abe51371",
"url": "https://osv.dev/vulnerability/CVE-2017-17716",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-17716",
"summary": "GitLab 9.4.x before 9.4.2 does not support LDAP SSL certificate verification, but a verify_certificates LDAP option was mentioned in the 9.4 release announcement. This issue occurred because code was not merged. This is related to use of the omniauth-ldap library and the gitlab_omniauth-ldap gem.",
"evidence": "osv:CVE-2017-17716",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2017-17716",
"aliases": [
"CVE-2017-17716"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://gitlab.com/gitlab-org/gitlab",
"type": "GIT",
"events": [
{
"introduced": "1cfb4f1bd87be2a38c61dbe78f10c351449ab8b4"
},
{
"last_affected": "1ae0012728304fb533c3267ddf23c77465821440"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:gitlab:gitlab:9.4.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.0"
},
{
"last_affected": "9.4.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:9.4.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.0-rc1"
},
{
"last_affected": "9.4.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:9.4.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.0-rc2"
},
{
"last_affected": "9.4.0-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:9.4.0:rc3:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.0-rc3"
},
{
"last_affected": "9.4.0-rc3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:9.4.0:rc4:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.0-rc4"
},
{
"last_affected": "9.4.0-rc4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:9.4.0:rc5:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.0-rc5"
},
{
"last_affected": "9.4.0-rc5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:9.4.0:rc6:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.0-rc6"
},
{
"last_affected": "9.4.0-rc6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:gitlab:gitlab:9.4.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.1"
},
{
"last_affected": "9.4.1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"9.4.0",
"9.4.0-rc1",
"9.4.0-rc2",
"9.4.0-rc3",
"9.4.0-rc4",
"9.4.0-rc5",
"9.4.0-rc6",
"9.4.1",
"v9.4.1-ee",
"v9.4.0-ee"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-17716.json"
}
}
],
"modified": "2026-10-30T10:30:56.992185720Z",
"provider": "osv",
"references": [
"https://about.gitlab.com/2017/07/22/gitlab-9-4-released/#security---add-ldap-ssl-certificate-verification",
"https://about.gitlab.com/2017/07/28/gitlab-9-dot-4-dot-2-released/",
"https://gitlab.com/gitlab-org/gitlab-ce/issues/30420"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2017-17716",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431671,
"published_at": "2017-12-17T17:29:00.227+00:00"
}