USN-4634-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4634-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4634-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4634-1
Upstream
Related
Published
2020-11-17T13:10:04.805223Z
Modified
2025-09-08T16:36:52Z
Summary
openldap vulnerabilities
Details

It was discovered that OpenLDAP incorrectly handled certain malformed inputs. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service.

References

Affected packages

Ubuntu:16.04:LTS / openldap

Package

Name
openldap
Purl
pkg:deb/ubuntu/openldap@2.4.42+dfsg-2ubuntu3.11?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.42+dfsg-2ubuntu3.11

Affected versions

2.*

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.4.42+dfsg-2ubuntu3.11",
            "binary_name": "ldap-utils"
        },
        {
            "binary_version": "2.4.42+dfsg-2ubuntu3.11",
            "binary_name": "libldap-2.4-2"
        },
        {
            "binary_version": "2.4.42+dfsg-2ubuntu3.11",
            "binary_name": "libldap2-dev"
        },
        {
            "binary_version": "2.4.42+dfsg-2ubuntu3.11",
            "binary_name": "slapd"
        },
        {
            "binary_version": "2.4.42+dfsg-2ubuntu3.11",
            "binary_name": "slapd-smbk5pwd"
        }
    ]
}

Ubuntu:18.04:LTS / openldap

Package

Name
openldap
Purl
pkg:deb/ubuntu/openldap@2.4.45+dfsg-1ubuntu1.8?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.45+dfsg-1ubuntu1.8

Affected versions

2.*

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.4.45+dfsg-1ubuntu1.8",
            "binary_name": "ldap-utils"
        },
        {
            "binary_version": "2.4.45+dfsg-1ubuntu1.8",
            "binary_name": "libldap-2.4-2"
        },
        {
            "binary_version": "2.4.45+dfsg-1ubuntu1.8",
            "binary_name": "libldap-common"
        },
        {
            "binary_version": "2.4.45+dfsg-1ubuntu1.8",
            "binary_name": "libldap2-dev"
        },
        {
            "binary_version": "2.4.45+dfsg-1ubuntu1.8",
            "binary_name": "slapd"
        },
        {
            "binary_version": "2.4.45+dfsg-1ubuntu1.8",
            "binary_name": "slapd-smbk5pwd"
        }
    ]
}

Ubuntu:20.04:LTS / openldap

Package

Name
openldap
Purl
pkg:deb/ubuntu/openldap@2.4.49+dfsg-2ubuntu1.5?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.49+dfsg-2ubuntu1.5

Affected versions

2.*

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.4.49+dfsg-2ubuntu1.5",
            "binary_name": "ldap-utils"
        },
        {
            "binary_version": "2.4.49+dfsg-2ubuntu1.5",
            "binary_name": "libldap-2.4-2"
        },
        {
            "binary_version": "2.4.49+dfsg-2ubuntu1.5",
            "binary_name": "libldap-common"
        },
        {
            "binary_version": "2.4.49+dfsg-2ubuntu1.5",
            "binary_name": "libldap2-dev"
        },
        {
            "binary_version": "2.4.49+dfsg-2ubuntu1.5",
            "binary_name": "slapd"
        },
        {
            "binary_version": "2.4.49+dfsg-2ubuntu1.5",
            "binary_name": "slapd-contrib"
        },
        {
            "binary_version": "2.4.49+dfsg-2ubuntu1.5",
            "binary_name": "slapd-smbk5pwd"
        },
        {
            "binary_version": "2.4.49+dfsg-2ubuntu1.5",
            "binary_name": "slapi-dev"
        }
    ]
}