[USN-3924-1] mod_auth_mellon vulnerabilities

[Leonidas S. Barbosa]

==========================================================================
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
  https://launchpad.net/ubuntu/+source/libapache2-mod-auth-mellon/0.13.1-1ubuntu0.1
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: This is a digitally signed message part
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20190328/192db813/attachment.sig>