CVE-2019-13565

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.

Published: 2019-07-26 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-13565 is rated Moderate Risk (62.7/100): CVSS High severity, with high exploitation likelihood (EPSS 5.01%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-13565

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 4.19% 5.01% +0.82%
2 2026-05-28 3.34% 4.19% +0.85%
3 2026-05-05 — 3.34% —

Full EPSS history (30 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-13565

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-13565

OS Trackers for CVE-2019-13565

vendor priority summary link
alpine high CVE-2019-13565: 1 source package rows (openldap); 20 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 10. https://security.alpinelinux.org/vuln/CVE-2019-13565
debian low CVE-2019-13565 low priority: Debian including 1 source packages (openldap), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-13565
redhat medium — https://access.redhat.com/security/cve/CVE-2019-13565
suse medium CVE-2019-13565 severity moderate: SUSE including 506 source package names (0.1.0:libldap-2_4-2-2.4.46-9.19.2, 0.1.0:libldap-data-2.4.46-9.19.2, …), 672 product×package rows across 141 product lines (Container bci/dotnet-aspnet, Container bci/dotnet-runtime, … (141 product lines)): Fixed 492, Known Affected 157, Known Not Affected 23. https://www.suse.com/security/cve/CVE-2019-13565/
ubuntu medium CVE-2019-13565 medium priority: Ubuntu including 1 source packages (openldap), 5 status rows across 5 suites (bionic, disco, trusty, upstream, xenial): released 5. https://ubuntu.com/security/CVE-2019-13565

Affected software / configurations for CVE-2019-13565

Vendor Product Version Raw CPE
openldap openldap >= 2.0, <= 2.4.47 cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:*:*:*:*
canonical ubuntu_linux 19.04 cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
opensuse leap 15.0 cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
f5 traffix_signaling_delivery_controller 5.0.0 cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.0.0:*:*:*:*:*:*:*
f5 traffix_signaling_delivery_controller 5.1.0 cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.1.0:*:*:*:*:*:*:*
apple mac_os_x >= 10.13, < 10.13.6 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
apple mac_os_x >= 10.14, < 10.14.6 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
apple mac_os_x >= 10.15, < 10.15.2 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:*:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:-:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-002:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-003:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-001:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-002:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-003:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-004:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-005:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-006:*:*:*:*:*:*
apple mac_os_x 10.14.6 cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*
apple mac_os_x 10.14.6 cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:*
oracle blockchain_platform < 21.1.2 cpe:2.3:a:oracle:blockchain_platform:*:*:*:*:*:*:*:*
oracle zfs_storage_appliance_kit 8.8 cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
oracle solaris 11 cpe:2.3:o:oracle:solaris:11:*:*:*:*:*:*:*

References for CVE-2019-13565

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00053.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00058.html Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Dec/26 Mailing List Third Party Advisory
https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2019/08/msg00024.html Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Dec/23 Mailing List Third Party Advisory
https://support.apple.com/kb/HT210788 Third Party Advisory
https://support.f5.com/csp/article/K98008862?utm_source=f5support&amp%3Butm_medium=RSS
https://usn.ubuntu.com/4078-1/ Third Party Advisory
https://usn.ubuntu.com/4078-2/ Third Party Advisory
https://www.openldap.org/its/index.cgi/?findid=9052 Mailing List Vendor Advisory
https://www.openldap.org/lists/openldap-announce/201907/msg00001.html Mailing List Vendor Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
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