[USN-6596-1] Apache::Session::LDAP vulnerability

Amir Naseredini amir.naseredini at canonical.com
Wed Jan 24 14:16:06 UTC 2024

Ubuntu Security Notice USN-6596-1
January 24, 2024

libapache-session-ldap-perl vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)


Apache::Session::LDAP could be made to expose sensitive information through
spoofing if it received invalid X.509 certificate.

Software Description:
- libapache-session-ldap-perl: Apache::Session::LDAP Perl module - Store Apache 
Session in LDAP


It was discovered that Apache::Session::LDAP incorrectly handled invalid X.509
certificates. If a user or an automated system were tricked into opening a
specially crafted invalid X.509 certificate, a remote attacker could possibly
use this issue to perform spoofing and obtain sensitive information.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
   libapache-session-ldap-perl     0.4-1+deb10u1build0.20.04.1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   libapache-session-ldap-perl     0.4-1ubuntu0.18.04.1~esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   libapache-session-ldap-perl     0.4-1ubuntu0.16.04.1~esm1

In general, a standard system update will make all the necessary changes.


Package Information:

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