UBUNTU-CVE-2021-33900 (CVE-2021-33900)
Vulnerability from osv_ubuntu – Published: 2021-07-26 07:15 – Updated: 2026-10-17 09:08 – Source website
VLAI
Details
While investigating DIRSTUDIO-1219 it was noticed that configured StartTLS encryption was not applied when any SASL authentication mechanism (DIGEST-MD5, GSSAPI) was used. While investigating DIRSTUDIO-1220 it was noticed that any configured SASL confidentiality layer was not applied. This issue affects Apache Directory Studio version 2.0.0.v20210213-M16 and prior versions.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apacheds",
"binary_version": "2.0.0~M15-3"
},
{
"binary_name": "libapacheds-i18n-java",
"binary_version": "2.0.0~M15-3"
},
{
"binary_name": "libapacheds-java",
"binary_version": "2.0.0~M15-3"
},
{
"binary_name": "libapacheds-kerberos-codec-java",
"binary_version": "2.0.0~M15-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "apache-directory-server",
"purl": "pkg:deb/ubuntu/apache-directory-server@2.0.0~M15-3?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.0~M15-1",
"2.0.0~M15-2",
"2.0.0~M15-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apacheds",
"binary_version": "2.0.0~M24-2~18.04"
},
{
"binary_name": "libapacheds-i18n-java",
"binary_version": "2.0.0~M24-2~18.04"
},
{
"binary_name": "libapacheds-java",
"binary_version": "2.0.0~M24-2~18.04"
},
{
"binary_name": "libapacheds-kerberos-codec-java",
"binary_version": "2.0.0~M24-2~18.04"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "apache-directory-server",
"purl": "pkg:deb/ubuntu/apache-directory-server@2.0.0~M24-2~18.04?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.0~M15-4",
"2.0.0~M24-2~18.04"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apacheds",
"binary_version": "2.0.0~M24-3"
},
{
"binary_name": "libapacheds-i18n-java",
"binary_version": "2.0.0~M24-3"
},
{
"binary_name": "libapacheds-java",
"binary_version": "2.0.0~M24-3"
},
{
"binary_name": "libapacheds-kerberos-codec-java",
"binary_version": "2.0.0~M24-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "apache-directory-server",
"purl": "pkg:deb/ubuntu/apache-directory-server@2.0.0~M24-3?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.0~M24-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apacheds",
"binary_version": "2.0.0~M24-4"
},
{
"binary_name": "libapacheds-i18n-java",
"binary_version": "2.0.0~M24-4"
},
{
"binary_name": "libapacheds-java",
"binary_version": "2.0.0~M24-4"
},
{
"binary_name": "libapacheds-kerberos-codec-java",
"binary_version": "2.0.0~M24-4"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "apache-directory-server",
"purl": "pkg:deb/ubuntu/apache-directory-server@2.0.0~M24-4?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.0~M24-4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apacheds",
"binary_version": "2.0.0~M26-4"
},
{
"binary_name": "libapacheds-i18n-java",
"binary_version": "2.0.0~M26-4"
},
{
"binary_name": "libapacheds-java",
"binary_version": "2.0.0~M26-4"
},
{
"binary_name": "libapacheds-kerberos-codec-java",
"binary_version": "2.0.0~M26-4"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "apache-directory-server",
"purl": "pkg:deb/ubuntu/apache-directory-server@2.0.0~M26-4?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.0~M26-1",
"2.0.0~M26-3",
"2.0.0~M26-4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apacheds",
"binary_version": "2.0.0~M26-5"
},
{
"binary_name": "libapacheds-i18n-java",
"binary_version": "2.0.0~M26-5"
},
{
"binary_name": "libapacheds-java",
"binary_version": "2.0.0~M26-5"
},
{
"binary_name": "libapacheds-kerberos-codec-java",
"binary_version": "2.0.0~M26-5"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "apache-directory-server",
"purl": "pkg:deb/ubuntu/apache-directory-server@2.0.0~M26-5?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.0~M26-5"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apacheds",
"binary_version": "2.0.0~M26-7"
},
{
"binary_name": "libapacheds-i18n-java",
"binary_version": "2.0.0~M26-7"
},
{
"binary_name": "libapacheds-java",
"binary_version": "2.0.0~M26-7"
},
{
"binary_name": "libapacheds-kerberos-codec-java",
"binary_version": "2.0.0~M26-7"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.10",
"name": "apache-directory-server",
"purl": "pkg:deb/ubuntu/apache-directory-server@2.0.0~M26-7?arch=source\u0026distro=stonking"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.0~M26-5build1",
"2.0.0~M26-6",
"2.0.0~M26-7"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "apacheds",
"binary_version": "2.0.0~M26-5build1"
},
{
"binary_name": "libapacheds-i18n-java",
"binary_version": "2.0.0~M26-5build1"
},
{
"binary_name": "libapacheds-java",
"binary_version": "2.0.0~M26-5build1"
},
{
"binary_name": "libapacheds-kerberos-codec-java",
"binary_version": "2.0.0~M26-5build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "apache-directory-server",
"purl": "pkg:deb/ubuntu/apache-directory-server@2.0.0~M26-5build1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.0~M26-5",
"2.0.0~M26-5build1"
]
}
],
"aliases": [],
"details": "While investigating DIRSTUDIO-1219 it was noticed that configured StartTLS encryption was not applied when any SASL authentication mechanism (DIGEST-MD5, GSSAPI) was used. While investigating DIRSTUDIO-1220 it was noticed that any configured SASL confidentiality layer was not applied. This issue affects Apache Directory Studio version 2.0.0.v20210213-M16 and prior versions.",
"id": "UBUNTU-CVE-2021-33900",
"modified": "2026-10-17T09:08:27Z",
"published": "2021-07-26T07:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-33900"
},
{
"type": "REPORT",
"url": "https://www.openwall.com/lists/oss-security/2021/07/24/1"
},
{
"type": "REPORT",
"url": "https://lists.apache.org/thread.html/rb1dbcc43a5b406e45d335343a1704f4233de613140a01929d102fdc9%40%3Cusers.directory.apache.org%3E"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33900"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2021-33900"
]
}
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