==========================================================================
Ubuntu Security Notice USN-3924-1
March 28, 2019
libapache2-mod-auth-mellon vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.10
– Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in mod_auth_mellon.
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. (CVE-2019-3877)
It was discovered that mod_auth_mellon incorrectly handled certain
requests. An attacker could possibly use this issue to access sensitive
information. (CVE-2019-3878)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
libapache2-mod-auth-mellon 0.14.0-1ubuntu0.1
Ubuntu 18.04 LTS:
libapache2-mod-auth-mellon 0.13.1-1ubuntu0.1
In general, a standard system update will make all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3924-1
CVE-2019-3877, CVE-2019-3878
Package Information:
https://launchpad.net/ubuntu/+source/libapache2-mod-auth-mellon/0.14.0-1ubuntu0.1
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