A libapache-session-ldap-perl security update has been released for Debian GNU/Linux 10 LTS to address an issue where the validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends.

DLA 3284-1: libapache-session-ldap-perl security update

-------------------------------------------------------------------------
Debian LTS Advisory DLA-3284-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Guilhem Moulin
January 28, 2023   https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : libapache-session-ldap-perl
Version : 0.4-1+deb10u1
CVE ID : CVE-2020-36658

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.

This update changes the default behavior to require X.509 validation
against the distribution bundle /etc/ssl/certs/ca-certificates.crt.
Previous behavior can reverted by setting `ldapVerify => "none"` when
initializing the Apache::Session::LDAP object.

NOTE: this update is a prerequisite for LemonLDAP::NG's CVE-2020-16093
fix when its session backend is set to Apache::Session::LDAP.

For Debian 10 buster, this problem has been fixed in version
0.4-1+deb10u1.

We recommend that you upgrade your libapache-session-ldap-perl packages.

For the detailed security status of libapache-session-ldap-perl please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/libapache-session-ldap-perl

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS