# CVE-2019-13565: ldap-utils: An issue was discovered in OpenLDAP 2.x before 2.4.48

CVE-2019-13565 is fixed in 5 products on 1 platform, first by ldap-utils 2.4.45+dfsg-1ubuntu1.3, released July 25, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-13565
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0502
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 25, 2019

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ldap-utils Ubuntu 18.04.6 LTS (bionic) | 2.4.45+dfsg-1ubuntu1.3 | [ldap-utils 2.4.45+dfsg-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ldap-utils-2.4.45-dfsg-1ubuntu1.3.md) | Jul 25, 2019 |
| Linux | libldap-2.4-2 Ubuntu 18.04.6 LTS (bionic) | 2.4.45+dfsg-1ubuntu1.3 | [libldap-2.4-2 2.4.45+dfsg-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libldap-2.4-2-2.4.45-dfsg-1ubuntu1.3.md) | Jul 25, 2019 |
| Linux | libldap-common Ubuntu 18.04.6 LTS (bionic) | 2.4.45+dfsg-1ubuntu1.3 | [libldap-common 2.4.45+dfsg-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libldap-common-2.4.45-dfsg-1ubuntu1.3.md) | Jul 25, 2019 |
| Linux | slapd Ubuntu 18.04.6 LTS (bionic) | 2.4.45+dfsg-1ubuntu1.3 | [slapd 2.4.45+dfsg-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-slapd-2.4.45-dfsg-1ubuntu1.3.md) | Jul 25, 2019 |
| Linux | slapd-smbk5pwd Ubuntu 18.04.6 LTS (bionic) | 2.4.45+dfsg-1ubuntu1.3 | [slapd-smbk5pwd 2.4.45+dfsg-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-slapd-smbk5pwd-2.4.45-dfsg-1ubuntu1.3.md) | Jul 25, 2019 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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