usn-4744-1
Vulnerability from osv_ubuntu
Published
2021-02-22 14:22
Modified
2026-04-22 07:36
Summary
openldap vulnerability
Details
Pasi Saarinen discovered that OpenLDAP incorrectly handled certain short timestamps. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-27212",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ldap-utils",
"binary_version": "2.4.42+dfsg-2ubuntu3.13"
},
{
"binary_name": "libldap-2.4-2",
"binary_version": "2.4.42+dfsg-2ubuntu3.13"
},
{
"binary_name": "slapd",
"binary_version": "2.4.42+dfsg-2ubuntu3.13"
},
{
"binary_name": "slapd-smbk5pwd",
"binary_version": "2.4.42+dfsg-2ubuntu3.13"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "openldap",
"purl": "pkg:deb/ubuntu/openldap@2.4.42+dfsg-2ubuntu3.13?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.42+dfsg-2ubuntu3.13"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.41+dfsg-1ubuntu2",
"2.4.41+dfsg-1ubuntu3",
"2.4.42+dfsg-2ubuntu1",
"2.4.42+dfsg-2ubuntu3",
"2.4.42+dfsg-2ubuntu3.1",
"2.4.42+dfsg-2ubuntu3.2",
"2.4.42+dfsg-2ubuntu3.3",
"2.4.42+dfsg-2ubuntu3.4",
"2.4.42+dfsg-2ubuntu3.5",
"2.4.42+dfsg-2ubuntu3.6",
"2.4.42+dfsg-2ubuntu3.7",
"2.4.42+dfsg-2ubuntu3.8",
"2.4.42+dfsg-2ubuntu3.9",
"2.4.42+dfsg-2ubuntu3.10",
"2.4.42+dfsg-2ubuntu3.11",
"2.4.42+dfsg-2ubuntu3.12"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-27212",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ldap-utils",
"binary_version": "2.4.45+dfsg-1ubuntu1.10"
},
{
"binary_name": "libldap-2.4-2",
"binary_version": "2.4.45+dfsg-1ubuntu1.10"
},
{
"binary_name": "libldap-common",
"binary_version": "2.4.45+dfsg-1ubuntu1.10"
},
{
"binary_name": "slapd",
"binary_version": "2.4.45+dfsg-1ubuntu1.10"
},
{
"binary_name": "slapd-smbk5pwd",
"binary_version": "2.4.45+dfsg-1ubuntu1.10"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "openldap",
"purl": "pkg:deb/ubuntu/openldap@2.4.45+dfsg-1ubuntu1.10?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.45+dfsg-1ubuntu1.10"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.45+dfsg-1ubuntu1",
"2.4.45+dfsg-1ubuntu1.1",
"2.4.45+dfsg-1ubuntu1.2",
"2.4.45+dfsg-1ubuntu1.3",
"2.4.45+dfsg-1ubuntu1.4",
"2.4.45+dfsg-1ubuntu1.5",
"2.4.45+dfsg-1ubuntu1.6",
"2.4.45+dfsg-1ubuntu1.7",
"2.4.45+dfsg-1ubuntu1.8",
"2.4.45+dfsg-1ubuntu1.9"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2021-27212",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ldap-utils",
"binary_version": "2.4.49+dfsg-2ubuntu1.7"
},
{
"binary_name": "libldap-2.4-2",
"binary_version": "2.4.49+dfsg-2ubuntu1.7"
},
{
"binary_name": "libldap-common",
"binary_version": "2.4.49+dfsg-2ubuntu1.7"
},
{
"binary_name": "slapd",
"binary_version": "2.4.49+dfsg-2ubuntu1.7"
},
{
"binary_name": "slapd-contrib",
"binary_version": "2.4.49+dfsg-2ubuntu1.7"
},
{
"binary_name": "slapd-smbk5pwd",
"binary_version": "2.4.49+dfsg-2ubuntu1.7"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "openldap",
"purl": "pkg:deb/ubuntu/openldap@2.4.49+dfsg-2ubuntu1.7?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.49+dfsg-2ubuntu1.7"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.48+dfsg-1ubuntu1",
"2.4.48+dfsg-1ubuntu2",
"2.4.48+dfsg-1ubuntu3",
"2.4.48+dfsg-1ubuntu4",
"2.4.49+dfsg-1ubuntu1",
"2.4.49+dfsg-2ubuntu1",
"2.4.49+dfsg-2ubuntu1.2",
"2.4.49+dfsg-2ubuntu1.3",
"2.4.49+dfsg-2ubuntu1.4",
"2.4.49+dfsg-2ubuntu1.5",
"2.4.49+dfsg-2ubuntu1.6"
]
}
],
"aliases": [],
"details": "Pasi Saarinen discovered that OpenLDAP incorrectly handled certain short\ntimestamps. A remote attacker could possibly use this issue to cause\nOpenLDAP to crash, resulting in a denial of service.\n",
"id": "USN-4744-1",
"modified": "2026-04-22T07:36:58Z",
"published": "2021-02-22T14:22:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4744-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-27212"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "openldap vulnerability",
"upstream": [
"UBUNTU-CVE-2021-27212"
]
}
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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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