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openldap — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2020-36224

A flaw was discovered in OpenLDAP before 2.4.57 leading to an invalid pointer free and slapd crash in the saslAuthzTo processing, resulting in denial of service.

Products
openldap
Affected versions
Not specified
Fixed versions
2.4.57+dfsg-1
CVEs
CVE-2020-36224
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 12:48 UTC · Revision 1

Source evidence

DEBIAN-CVE-2020-36224

core-osv · Original source

Published 26 Jan 2021, 18:15 UTC

A flaw was discovered in OpenLDAP before 2.4.57 leading to an invalid pointer free and slapd crash in the saslAuthzTo processing, resulting in denial of service.

osv:DEBIAN-CVE-2020-36224

openldap

Fixed versions: 2.4.57+dfsg-1

openldap

Fixed versions: 2.4.57+dfsg-1

openldap

Fixed versions: 2.4.57+dfsg-1

Complete source record
{
  "id": "8fc00ae2c338bbc6de9ab4ba83054136d3a0e3fe506e4706c28c284efff9d095",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-36224",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-36224",
    "summary": "A flaw was discovered in OpenLDAP before 2.4.57 leading to an invalid pointer free and slapd crash in the saslAuthzTo processing, resulting in denial of service.",
    "evidence": "osv:DEBIAN-CVE-2020-36224",
    "products": [
      {
        "name": {
          "value": "openldap",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.57+dfsg-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openldap",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.57+dfsg-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openldap",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.57+dfsg-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2020-36224",
      "aliases": [
        "DEBIAN-CVE-2020-36224"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.57+dfsg-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openldap",
            "purl": "pkg:deb/debian/openldap?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-36224.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.57+dfsg-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openldap",
            "purl": "pkg:deb/debian/openldap?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-36224.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.57+dfsg-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openldap",
            "purl": "pkg:deb/debian/openldap?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-36224.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:00:53.882946072Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-36224"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-36224"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-36224",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 451377,
  "published_at": "2021-01-26T18:15:56.973+00:00"
}