CVE-2020-36658
First published: Fri Jan 27 2023(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/libapache-session-ldap-perl | <=0.4-1 | 0.4-1+deb10u1 0.5-1 |
| ubuntu/libapache-session-ldap-perl | <0.5-1 | 0.5-1 |
| ubuntu/libapache-session-ldap-perl | <0.4-1ubuntu0.18.04.1~ | 0.4-1ubuntu0.18.04.1~ |
| ubuntu/libapache-session-ldap-perl | <0.4-1+ | 0.4-1+ |
| ubuntu/libapache-session-ldap-perl | <0.4-1ubuntu0.16.04.1~ | 0.4-1ubuntu0.16.04.1~ |
| LemonLDAP::NG Apache | <0.5 | |
| Debian Linux | =10.0 | |
| <0.5 | ||
| =10.0 |
Remedy
https://github.com/LemonLDAPNG/Apache-Session-LDAP/commit/490722b71eed1ed1ab33d58c78578f23e043561f
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Reference Links
- https://github.com/LemonLDAPNG/Apache-Session-LDAP/commit/490722b71eed1ed1ab33d58c78578f23e043561f
- https://lists.debian.org/debian-lts-announce/2023/01/msg00024.html
- https://launchpad.net/bugs/cve/CVE-2020-36658
- https://security-tracker.debian.org/tracker/CVE-2020-36658
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36658
- https://ubuntu.com/security/notices/USN-6596-1
- https://nvd.nist.gov/vuln/detail/CVE-2020-36658
- https://ubuntu.com/security/CVE-2020-36658
Frequently Asked Questions
What is the severity of CVE-2020-36658?
CVE-2020-36658 is classified as a moderate severity vulnerability.
How do I fix CVE-2020-36658?
To fix CVE-2020-36658, upgrade to libapache-session-ldap-perl version 0.5-1 or later.
Which versions of libapache-session-ldap-perl are affected by CVE-2020-36658?
Versions up to and including 0.4-1 of libapache-session-ldap-perl are affected by CVE-2020-36658.
Does CVE-2020-36658 involve SSL certificate validation?
Yes, CVE-2020-36658 involves a lack of default X.509 certificate validation when connecting to remote LDAP backends.
Is there a workaround for CVE-2020-36658?
A possible workaround for CVE-2020-36658 is to manually configure the SSL settings to enforce certificate validation.
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