{"id":"USN-4724-1","summary":"openldap vulnerabilities","details":"It was discovered that OpenLDAP incorrectly handled Certificate Exact\nAssertion processing. A remote attacker could possibly use this issue to\ncause OpenLDAP to crash, resulting in a denial of service. (CVE-2020-36221)\n\nIt was discovered that OpenLDAP incorrectly handled saslAuthzTo processing.\nA remote attacker could use this issue to cause OpenLDAP to crash,\nresulting in a denial of service, or possibly execute arbitrary code.\n(CVE-2020-36222, CVE-2020-36224, CVE-2020-36225, CVE-2020-36226)\n\nIt was discovered that OpenLDAP incorrectly handled Return Filter control\nhandling. A remote attacker could use this issue to cause OpenLDAP to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2020-36223)\n\nIt was discovered that OpenLDAP incorrectly handled certain cancel\noperations. A remote attacker could possibly use this issue to cause\nOpenLDAP to crash, resulting in a denial of service. (CVE-2020-36227)\n\nIt was discovered that OpenLDAP incorrectly handled Certificate List\nExtract Assertion processing. A remote attacker could possibly use this\nissue to cause OpenLDAP to crash, resulting in a denial of service.\n(CVE-2020-36228)\n\nIt was discovered that OpenLDAP incorrectly handled X.509 DN parsing. A\nremote attacker could possibly use this issue to cause OpenLDAP to crash,\nresulting in a denial of service. (CVE-2020-36229, CVE-2020-36230)\n","modified":"2026-02-10T04:42:02Z","published":"2021-02-08T12:55:14Z","related":["UBUNTU-CVE-2020-36221","UBUNTU-CVE-2020-36222","UBUNTU-CVE-2020-36223","UBUNTU-CVE-2020-36224","UBUNTU-CVE-2020-36225","UBUNTU-CVE-2020-36226","UBUNTU-CVE-2020-36227","UBUNTU-CVE-2020-36228","UBUNTU-CVE-2020-36229","UBUNTU-CVE-2020-36230"],"upstream":["CVE-2020-36221","CVE-2020-36222","CVE-2020-36223","CVE-2020-36224","CVE-2020-36225","CVE-2020-36226","CVE-2020-36227","CVE-2020-36228","CVE-2020-36229","CVE-2020-36230","UBUNTU-CVE-2020-36221","UBUNTU-CVE-2020-36222","UBUNTU-CVE-2020-36223","UBUNTU-CVE-2020-36224","UBUNTU-CVE-2020-36225","UBUNTU-CVE-2020-36226","UBUNTU-CVE-2020-36227","UBUNTU-CVE-2020-36228","UBUNTU-CVE-2020-36229","UBUNTU-CVE-2020-36230"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4724-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36221"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36222"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36223"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36224"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36225"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36226"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36227"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36228"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36229"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36230"}],"affected":[{"package":{"name":"openldap","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/openldap@2.4.42+dfsg-2ubuntu3.12?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.42+dfsg-2ubuntu3.12"}]}],"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","2.4.42+dfsg-2ubuntu3.11"],"ecosystem_specific":{"binaries":[{"binary_name":"ldap-utils","binary_version":"2.4.42+dfsg-2ubuntu3.12"},{"binary_name":"libldap-2.4-2","binary_version":"2.4.42+dfsg-2ubuntu3.12"},{"binary_name":"libldap2-dev","binary_version":"2.4.42+dfsg-2ubuntu3.12"},{"binary_name":"slapd","binary_version":"2.4.42+dfsg-2ubuntu3.12"},{"binary_name":"slapd-smbk5pwd","binary_version":"2.4.42+dfsg-2ubuntu3.12"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4724-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2020-36221","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36222","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36223","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36224","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36225","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36226","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36227","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36228","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36229","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36230","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":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"openldap","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/openldap@2.4.45+dfsg-1ubuntu1.9?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.45+dfsg-1ubuntu1.9"}]}],"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","2.4.45+dfsg-1ubuntu1.8"],"ecosystem_specific":{"binaries":[{"binary_name":"ldap-utils","binary_version":"2.4.45+dfsg-1ubuntu1.9"},{"binary_name":"libldap-2.4-2","binary_version":"2.4.45+dfsg-1ubuntu1.9"},{"binary_name":"libldap-common","binary_version":"2.4.45+dfsg-1ubuntu1.9"},{"binary_name":"libldap2-dev","binary_version":"2.4.45+dfsg-1ubuntu1.9"},{"binary_name":"slapd","binary_version":"2.4.45+dfsg-1ubuntu1.9"},{"binary_name":"slapd-smbk5pwd","binary_version":"2.4.45+dfsg-1ubuntu1.9"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4724-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2020-36221","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36222","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36223","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36224","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36225","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36226","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36227","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36228","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36229","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36230","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":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"openldap","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/openldap@2.4.49+dfsg-2ubuntu1.6?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.49+dfsg-2ubuntu1.6"}]}],"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","2.4.49+dfsg-2ubuntu1.5"],"ecosystem_specific":{"binaries":[{"binary_name":"ldap-utils","binary_version":"2.4.49+dfsg-2ubuntu1.6"},{"binary_name":"libldap-2.4-2","binary_version":"2.4.49+dfsg-2ubuntu1.6"},{"binary_name":"libldap-common","binary_version":"2.4.49+dfsg-2ubuntu1.6"},{"binary_name":"libldap2-dev","binary_version":"2.4.49+dfsg-2ubuntu1.6"},{"binary_name":"slapd","binary_version":"2.4.49+dfsg-2ubuntu1.6"},{"binary_name":"slapd-contrib","binary_version":"2.4.49+dfsg-2ubuntu1.6"},{"binary_name":"slapd-smbk5pwd","binary_version":"2.4.49+dfsg-2ubuntu1.6"},{"binary_name":"slapi-dev","binary_version":"2.4.49+dfsg-2ubuntu1.6"}],"availability":"No 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required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4724-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-36221","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36222","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36223","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36224","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36225","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36226","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36227","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36228","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36229","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-36230","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":"medium","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}