Debian Security Advisory

DLA-1844-1 lemonldap-ng -- LTS security update

Date Reported:
04 Jul 2019
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2019-13031.
More information:

It was discovered that there was a XML external entity vulnerability in the lemonldap-ng single-sign on system. This may have led to the disclosure of confidential data, denial of service, server side request forgery, port scanning, etc.

  • CVE-2019-13031

    LemonLDAP::NG before 1.9.20 has an XML External Entity (XXE) issue when submitting a notification to the notification server. By default, the notification server is not enabled and has a "deny all" rule.

For Debian 8 Jessie, these problems have been fixed in version 1.3.3-1+deb8u2.

We recommend that you upgrade your lemonldap-ng packages.

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