{"id":"USN-4634-1","summary":"openldap vulnerabilities","details":"It was discovered that OpenLDAP incorrectly handled certain malformed\ninputs. A remote attacker could possibly use this issue to cause OpenLDAP\nto crash, resulting in a denial of service.\n","modified":"2026-02-10T04:41:59Z","published":"2020-11-17T13:10:04Z","related":["UBUNTU-CVE-2020-25709","UBUNTU-CVE-2020-25710"],"upstream":["CVE-2020-25709","CVE-2020-25710","UBUNTU-CVE-2020-25709","UBUNTU-CVE-2020-25710"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4634-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25709"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25710"}],"affected":[{"package":{"name":"openldap","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/openldap@2.4.42+dfsg-2ubuntu3.11?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.42+dfsg-2ubuntu3.11"}]}],"versions":["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":{"binaries":[{"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","binary_version":"2.4.42+dfsg-2ubuntu3.11"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-25709","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":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-25710","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":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4634-1.json"}},{"package":{"name":"openldap","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/openldap@2.4.45+dfsg-1ubuntu1.8?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.45+dfsg-1ubuntu1.8"}]}],"versions":["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":{"binaries":[{"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","binary_version":"2.4.45+dfsg-1ubuntu1.8"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-25709","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":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-25710","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":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4634-1.json"}},{"package":{"name":"openldap","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/openldap@2.4.49+dfsg-2ubuntu1.5?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.49+dfsg-2ubuntu1.5"}]}],"versions":["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":{"binaries":[{"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","binary_version":"2.4.49+dfsg-2ubuntu1.5"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2020-25709","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":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-25710","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":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4634-1.json"}}],"schema_version":"1.7.3"}