ubuntu-cve-2018-16838
Vulnerability from osv_ubuntu
Published
2019-03-25 18:29
Modified
2026-04-22 07:38
Summary
Details
A flaw was found in sssd Group Policy Objects implementation. When the GPO is not readable by SSSD due to a too strict permission settings on the server side, SSSD will allow all authenticated users to login instead of denying access.
Severity
5.4 (Medium)
5.4 (Medium)
N/A (UNKNOWN)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libipa-hbac0",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "libnss-sss",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "libpam-sss",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "libsss-idmap0",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "libsss-nss-idmap0",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "libsss-simpleifp0",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "libsss-sudo",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "libwbclient-sssd",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "python-libipa-hbac",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "python-libsss-nss-idmap",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "python-sss",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "python3-libipa-hbac",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "python3-libsss-nss-idmap",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "python3-sss",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-ad",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-ad-common",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-common",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-dbus",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-ipa",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-krb5",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-krb5-common",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-ldap",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-proxy",
"binary_version": "1.13.4-1ubuntu1.15"
},
{
"binary_name": "sssd-tools",
"binary_version": "1.13.4-1ubuntu1.15"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "sssd",
"purl": "pkg:deb/ubuntu/sssd@1.13.4-1ubuntu1.15?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.12.5-2",
"1.13.1-2",
"1.13.2-1",
"1.13.3-1",
"1.13.4-1",
"1.13.4-1ubuntu1",
"1.13.4-1ubuntu1.1",
"1.13.4-1ubuntu1.2",
"1.13.4-1ubuntu1.5",
"1.13.4-1ubuntu1.6",
"1.13.4-1ubuntu1.7",
"1.13.4-1ubuntu1.8",
"1.13.4-1ubuntu1.9",
"1.13.4-1ubuntu1.10",
"1.13.4-1ubuntu1.11",
"1.13.4-1ubuntu1.12",
"1.13.4-1ubuntu1.13",
"1.13.4-1ubuntu1.14",
"1.13.4-1ubuntu1.15"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libipa-hbac0",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "libnss-sss",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "libpam-sss",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "libsss-certmap0",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "libsss-idmap0",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "libsss-nss-idmap0",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "libsss-simpleifp0",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "libsss-sudo",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "libwbclient-sssd",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "python-libipa-hbac",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "python-libsss-nss-idmap",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "python-sss",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "python3-libipa-hbac",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "python3-libsss-nss-idmap",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "python3-sss",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-ad",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-ad-common",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-common",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-dbus",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-ipa",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-kcm",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-krb5",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-krb5-common",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-ldap",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-proxy",
"binary_version": "1.16.1-1ubuntu1.8"
},
{
"binary_name": "sssd-tools",
"binary_version": "1.16.1-1ubuntu1.8"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "sssd",
"purl": "pkg:deb/ubuntu/sssd@1.16.1-1ubuntu1.8?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.1-1ubuntu1.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.15.3-2ubuntu1",
"1.15.3-3ubuntu1",
"1.16.0-5ubuntu1",
"1.16.0-5ubuntu2",
"1.16.1-1ubuntu1",
"1.16.1-1ubuntu1.1",
"1.16.1-1ubuntu1.2",
"1.16.1-1ubuntu1.3",
"1.16.1-1ubuntu1.4",
"1.16.1-1ubuntu1.5",
"1.16.1-1ubuntu1.6",
"1.16.1-1ubuntu1.7"
]
}
],
"aliases": [],
"details": "A flaw was found in sssd Group Policy Objects implementation. When the GPO is not readable by SSSD due to a too strict permission settings on the server side, SSSD will allow all authenticated users to login instead of denying access.",
"id": "UBUNTU-CVE-2018-16838",
"modified": "2026-04-22T07:38:43Z",
"published": "2019-03-25T18:29:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2018-16838"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5067-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-16838"
}
],
"related": [
"USN-5067-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2018-16838"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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