UBUNTU-CVE-2020-12243

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2020-12243

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-12243.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-12243

Upstream

CVE-2020-12243

Downstream

USN-4352-1

USN-4352-2

Related

Published

2020-04-28T19:15:00Z

Modified

2025-07-16T07:34:06.553654Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

In filter.c in slapd in OpenLDAP before 2.4.50, LDAP search filters with nested boolean expressions can result in denial of service (daemon crash).

References

Affected packages

Ubuntu:Pro:14.04:LTS / openldap

Package

Name: openldap
Purl: pkg:deb/ubuntu/openldap@2.4.31-1+nmu2ubuntu8.5+esm2?arch=source&distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.4.31-1+nmu2ubuntu8.5+esm2

Affected versions

2.*

2.4.31-1+nmu2ubuntu3

2.4.31-1+nmu2ubuntu4

2.4.31-1+nmu2ubuntu5

2.4.31-1+nmu2ubuntu8

2.4.31-1+nmu2ubuntu8.1

2.4.31-1+nmu2ubuntu8.2

2.4.31-1+nmu2ubuntu8.3

2.4.31-1+nmu2ubuntu8.4

2.4.31-1+nmu2ubuntu8.5

2.4.31-1+nmu2ubuntu8.5+esm1

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ldap-utils",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "ldap-utils-dbgsym",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "libldap-2.4-2",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "libldap-2.4-2-dbg",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "libldap-2.4-2-dbgsym",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "libldap2-dev",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "libldap2-dev-dbgsym",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "slapd",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "slapd-dbg",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "slapd-dbgsym",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "slapd-smbk5pwd",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        },
        {
            "binary_name": "slapd-smbk5pwd-dbgsym",
            "binary_version": "2.4.31-1+nmu2ubuntu8.5+esm2"
        }
    ]
}

Ubuntu:16.04:LTS / openldap

Package

Name: openldap
Purl: pkg:deb/ubuntu/openldap@2.4.42+dfsg-2ubuntu3.8?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.4.42+dfsg-2ubuntu3.8

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

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "ldap-utils",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "ldap-utils-dbgsym",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "libldap-2.4-2",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "libldap-2.4-2-dbg",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "libldap-2.4-2-dbgsym",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "libldap2-dev",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "libldap2-dev-dbgsym",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "slapd",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "slapd-dbg",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "slapd-dbgsym",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "slapd-smbk5pwd",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        },
        {
            "binary_name": "slapd-smbk5pwd-dbgsym",
            "binary_version": "2.4.42+dfsg-2ubuntu3.8"
        }
    ]
}

Ubuntu:18.04:LTS / openldap

Package

Name: openldap
Purl: pkg:deb/ubuntu/openldap@2.4.45+dfsg-1ubuntu1.5?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.4.45+dfsg-1ubuntu1.5

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

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "ldap-utils",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        },
        {
            "binary_name": "ldap-utils-dbgsym",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        },
        {
            "binary_name": "libldap-2.4-2",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        },
        {
            "binary_name": "libldap-2.4-2-dbgsym",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        },
        {
            "binary_name": "libldap-common",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        },
        {
            "binary_name": "libldap2-dev",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        },
        {
            "binary_name": "slapd",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        },
        {
            "binary_name": "slapd-dbgsym",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        },
        {
            "binary_name": "slapd-smbk5pwd",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        },
        {
            "binary_name": "slapd-smbk5pwd-dbgsym",
            "binary_version": "2.4.45+dfsg-1ubuntu1.5"
        }
    ]
}

Ubuntu:20.04:LTS / openldap

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.4.49+dfsg-2ubuntu1.2

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

Ecosystem specific

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