USN-4888-2

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Source
https://ubuntu.com/security/notices/USN-4888-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4888-2.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4888-2
Upstream
Related
Published
2021-03-25T15:32:21.136437Z
Modified
2025-10-13T04:35:26Z
Summary
ldb vulnerabilities
Details

USN-4888-1 fixed several vulnerabilities in ldb. This update provides the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Douglas Bagnall discovered that ldb, when used with Samba, incorrectly handled certain LDAP attributes. A remote attacker could possibly use this issue to cause the LDAP server to crash, resulting in a denial of service. (CVE-2021-20277)

Douglas Bagnall discovered that ldb, when used with Samba, incorrectly handled certain DN strings. A remote attacker could use this issue to cause the LDAP server to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-27840)

References

Affected packages

Ubuntu:Pro:14.04:LTS / ldb

Package

Name
ldb
Purl
pkg:deb/ubuntu/ldb@1:1.1.24-0ubuntu0.14.04.2+esm1?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.1.24-0ubuntu0.14.04.2+esm1

Affected versions

1:1.*

1:1.1.15-1.1
1:1.1.16-1
1:1.1.16-1ubuntu0.1
1:1.1.24-0ubuntu0.14.04.1
1:1.1.24-0ubuntu0.14.04.2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ldb-tools",
            "binary_version": "1:1.1.24-0ubuntu0.14.04.2+esm1"
        },
        {
            "binary_name": "libldb-dev",
            "binary_version": "1:1.1.24-0ubuntu0.14.04.2+esm1"
        },
        {
            "binary_name": "libldb1",
            "binary_version": "1:1.1.24-0ubuntu0.14.04.2+esm1"
        },
        {
            "binary_name": "python-ldb",
            "binary_version": "1:1.1.24-0ubuntu0.14.04.2+esm1"
        },
        {
            "binary_name": "python-ldb-dev",
            "binary_version": "1:1.1.24-0ubuntu0.14.04.2+esm1"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2020-27840",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        },
        {
            "id": "CVE-2021-20277",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}