# CVE-2020-36658: libapache-session-ldap-perl: In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to r...

CVE-2020-36658 is fixed in libapache-session-ldap-perl on 1 platform, first by libapache-session-ldap-perl 0.4-1ubuntu0.18.04.1~esm1, released January 26, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2020-36658
- Priority: High
- CVSS: 8.1 (high)
- EPSS: 0.0046
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 26, 2023

## Description

In Apache::Session::LDAP before 0.5, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libapache-session-ldap-perl Debian 12.15 (bookworm) | 0.5-1 | [DEBIAN-CVE-2020-36658](https://patchblox.com/security/data/fix/linux/debian-cve-2020-36658.md) | Jan 27, 2023 |
| Linux | libapache-session-ldap-perl Debian 13.5 (trixie) | 0.5-1 | [DEBIAN-CVE-2020-36658](https://patchblox.com/security/data/fix/linux/debian-cve-2020-36658.md) | Jan 27, 2023 |
| Linux | libapache-session-ldap-perl Debian 14 | 0.5-1 | [DEBIAN-CVE-2020-36658](https://patchblox.com/security/data/fix/linux/debian-cve-2020-36658.md) | Jan 27, 2023 |
| Linux | libapache-session-ldap-perl Ubuntu 18.04.6 LTS (bionic) | 0.4-1ubuntu0.18.04.1~esm1 | [libapache-session-ldap-perl 0.4-1ubuntu0.18.04.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libapache-session-ldap-perl-0.4-1ubuntu0.18.04.1-esm1.md) | Jan 26, 2023 |
| Linux | libapache-session-ldap-perl Ubuntu 20.04 LTS (focal) | 0.4-1+deb10u1build0.20.04.1 | [libapache-session-ldap-perl 0.4-1+deb10u1build0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libapache-session-ldap-perl-0.4-1-deb10u1build0.20.04.1.md) | Jan 26, 2023 |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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