usn-4888-2
Vulnerability from osv_ubuntu
Published
2021-03-25 15:32
Modified
2026-04-22 07:36
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
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-27840",
              "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": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-20277",
              "severity": [
                {
                  "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": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "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": "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"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "ldb",
        "purl": "pkg:deb/ubuntu/ldb@1:1.1.24-0ubuntu0.14.04.2+esm1?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.1.24-0ubuntu0.14.04.2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "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"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-4888-1 fixed several vulnerabilities in ldb. This update provides\nthe corresponding update for Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n Douglas Bagnall discovered that ldb, when used with Samba, incorrectly\n handled certain LDAP attributes. A remote attacker could possibly use this\n issue to cause the LDAP server to crash, resulting in a denial of service.\n (CVE-2021-20277)\n \n Douglas Bagnall discovered that ldb, when used with Samba, incorrectly\n handled certain DN strings. A remote attacker could use this issue to\n cause the LDAP server to crash, resulting in a denial of service, or\n possibly execute arbitrary code. (CVE-2020-27840)\n",
  "id": "USN-4888-2",
  "modified": "2026-04-22T07:36:59Z",
  "published": "2021-03-25T15:32:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4888-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-27840"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-20277"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "ldb vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-27840",
    "UBUNTU-CVE-2021-20277"
  ]
}



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