Moderate: mod_auth_mellon security, bug fix, and enhancement update

Related Vulnerabilities: CVE-2019-3877   CVE-2019-3877   CVE-2019-3877  

Synopsis

Moderate: mod_auth_mellon security, bug fix, and enhancement update

Type/Severity

Security Advisory: Moderate

Topic

An update for mod_auth_mellon is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The mod_auth_mellon module for the Apache HTTP Server is an authentication service that implements the SAML 2.0 federation protocol. The module grants access based on the attributes received in assertions generated by an IdP server.

Security Fix(es):

  • mod_auth_mellon: open redirect in logout url when using URLs with backslashes (CVE-2019-3877)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 8 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 8 s390x
  • Red Hat Enterprise Linux for Power, little endian 8 ppc64le
  • Red Hat Enterprise Linux for ARM 64 8 aarch64

Fixes

  • BZ - 1691125 - CVE-2019-3877 mod_auth_mellon: open redirect in logout url when using URLs with backslashes
  • BZ - 1691894 - [RFE] Config option to change mod_auth_mellon prefix
  • BZ - 1702695 - fresh install of mod_auth_mellon shows rpm verification warnings

CVEs

References