--- id: CVE-2019-13565 title: An issue was discovered in OpenLDAP 2.x before 2.4.48 summary: >- An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denie… severity: high cvss: 7.5 cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N' vendor: openldap product: openldap affected: - 'openldap >= 2.0, <= 2.4.47' - ubuntu_linux = 12.04 - ubuntu_linux = 14.04 - ubuntu_linux = 16.04 - ubuntu_linux = 18.04 - ubuntu_linux = 19.04 - debian_linux = 8.0 - leap = 15.0 - leap = 15.1 - traffix_signaling_delivery_controller = 5.0.0 - traffix_signaling_delivery_controller = 5.1.0 - 'mac_os_x >= 10.13, < 10.13.6' - 'mac_os_x >= 10.14, < 10.14.6' - 'mac_os_x >= 10.15, < 10.15.2' - mac_os_x = 10.13.6 - mac_os_x = 10.14.6 - blockchain_platform < 21.1.2 - zfs_storage_appliance_kit = 8.8 - solaris = 11 patched: - mac_os_x 10.15.2 - blockchain_platform 21.1.2 published: '2019-07-26' updated: '2026-10-14' sourceUpdated: '2026-10-14T07:16:46.353' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2019-13565' references: - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00053.html' label: cve@mitre.org - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00058.html' label: cve@mitre.org - url: 'http://seclists.org/fulldisclosure/2019/Dec/26' label: cve@mitre.org - url: >- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E label: cve@mitre.org - url: >- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E label: cve@mitre.org - url: >- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E label: cve@mitre.org - url: 'https://lists.debian.org/debian-lts-announce/2019/08/msg00024.html' label: cve@mitre.org - url: 'https://seclists.org/bugtraq/2019/Dec/23' label: cve@mitre.org - url: 'https://support.apple.com/kb/HT210788' label: cve@mitre.org - url: >- https://support.f5.com/csp/article/K98008862?utm_source=f5support&%3Butm_medium=RSS label: cve@mitre.org - url: 'https://usn.ubuntu.com/4078-1/' label: cve@mitre.org - url: 'https://usn.ubuntu.com/4078-2/' label: cve@mitre.org - url: 'https://www.openldap.org/its/index.cgi/?findid=9052' label: cve@mitre.org - url: 'https://www.openldap.org/lists/openldap-announce/201907/msg00001.html' label: cve@mitre.org - url: 'https://www.oracle.com/security-alerts/cpuapr2020.html' label: cve@mitre.org - url: 'https://www.oracle.com/security-alerts/cpuapr2022.html' label: cve@mitre.org - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00053.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00058.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://seclists.org/fulldisclosure/2019/Dec/26' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://lists.debian.org/debian-lts-announce/2019/08/msg00024.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://seclists.org/bugtraq/2019/Dec/23' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://support.apple.com/kb/HT210788' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://support.f5.com/csp/article/K98008862?utm_source=f5support&%3Butm_medium=RSS label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://usn.ubuntu.com/4078-1/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://usn.ubuntu.com/4078-2/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.openldap.org/its/index.cgi/?findid=9052' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.openldap.org/lists/openldap-announce/201907/msg00001.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpuapr2020.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpuapr2022.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://cert-portal.siemens.com/productcert/html/ssa-398330.html' label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e - url: >- https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-13565.json - url: 'https://access.redhat.com/security/cve/CVE-2019-13565' - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=1730477' - url: 'https://www.cve.org/CVERecord?id=CVE-2019-13565' - url: 'https://nvd.nist.gov/vuln/detail/CVE-2019-13565' - url: 'http://www.openldap.org/lists/openldap-announce/201907/msg00001.html' - url: 'https://openldap.org/its/?findid=9052' tags: - nvd - csaf - vex - red-hat epss: 0.05015 epssPercentile: 0.92072 ingestedAt: '2026-10-14T07:21:04.817Z' cwe: - CWE-284 scores: nvd: 7.5 vendor: 7.4 --- ## Overview An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user. ## Affected - `openldap >= 2.0, <= 2.4.47` - `ubuntu_linux = 12.04` - `ubuntu_linux = 14.04` - `ubuntu_linux = 16.04` - `ubuntu_linux = 18.04` - `ubuntu_linux = 19.04` - `debian_linux = 8.0` - `leap = 15.0` - `leap = 15.1` - `traffix_signaling_delivery_controller = 5.0.0` - `traffix_signaling_delivery_controller = 5.1.0` - `mac_os_x >= 10.13, < 10.13.6` - `mac_os_x >= 10.14, < 10.14.6` - `mac_os_x >= 10.15, < 10.15.2` - `mac_os_x = 10.13.6` - `mac_os_x = 10.14.6` - `blockchain_platform < 21.1.2` - `zfs_storage_appliance_kit = 8.8` - `solaris = 11` ## Remediation Upgrade past the affected range: - `mac_os_x 10.15.2` - `blockchain_platform 21.1.2` ## Vendor advisories - **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat JBoss Core Services, Red Hat JBoss Enterprise Application Platform 5, Red Hat JBoss Enterprise Web Server 2 · no fix planned: Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, Red Hat JBoss Core Services, Red Hat JBoss Enterprise Application Platform 5, … · updated 2026-10-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-13565.json)