==========================================================================
Ubuntu Security Notice USN-4291-1
February 24, 2020
libapache2-mod-auth-mellon vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 19.10
– Ubuntu 18.04 LTS
Summary:
libapache2-mod-auth-mellon could be made to redirect users to malicious
sites.
Software Description:
– libapache2-mod-auth-mellon: SAML 2.0 authentication module for Apache
Details:
It was discovered that mod_auth_mellon incorrectly handled certain
requests. An attacker could possibly use this issue to redirect a user to a
malicious URL.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 19.10:
libapache2-mod-auth-mellon 0.14.2-1ubuntu1.19.10.1
Ubuntu 18.04 LTS:
libapache2-mod-auth-mellon 0.13.1-1ubuntu0.2
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4291-1
CVE-2019-13038
Package Information:
https://launchpad.net/ubuntu/+source/libapache2-mod-auth-mellon/0.14.2-1ubuntu1.19.10.1
https://launchpad.net/ubuntu/+source/libapache2-mod-auth-mellon/0.13.1-1ubuntu0.2
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