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A mod_auth_mellon security, bug fix, and enhancement update has been released for Red Hat Enterprise Linux 8



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Red Hat Security Advisory

Synopsis: Moderate: mod_auth_mellon security, bug fix, and enhancement update
Advisory ID: RHSA-2019:3421-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3421 Issue date: 2019-11-05
CVE Names: CVE-2019-3877
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1. Summary:

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
3. 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.
4. 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

5. Bugs fixed ( https://bugzilla.redhat.com/):

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

Red Hat Enterprise Linux AppStream (v. 8):

Source:
mod_auth_mellon-0.14.0-9.el8.src.rpm

aarch64:
mod_auth_mellon-0.14.0-9.el8.aarch64.rpm
mod_auth_mellon-debuginfo-0.14.0-9.el8.aarch64.rpm
mod_auth_mellon-debugsource-0.14.0-9.el8.aarch64.rpm
mod_auth_mellon-diagnostics-0.14.0-9.el8.aarch64.rpm
mod_auth_mellon-diagnostics-debuginfo-0.14.0-9.el8.aarch64.rpm
ppc64le:
mod_auth_mellon-0.14.0-9.el8.ppc64le.rpm
mod_auth_mellon-debuginfo-0.14.0-9.el8.ppc64le.rpm
mod_auth_mellon-debugsource-0.14.0-9.el8.ppc64le.rpm
mod_auth_mellon-diagnostics-0.14.0-9.el8.ppc64le.rpm
mod_auth_mellon-diagnostics-debuginfo-0.14.0-9.el8.ppc64le.rpm
s390x:
mod_auth_mellon-0.14.0-9.el8.s390x.rpm
mod_auth_mellon-debuginfo-0.14.0-9.el8.s390x.rpm
mod_auth_mellon-debugsource-0.14.0-9.el8.s390x.rpm
mod_auth_mellon-diagnostics-0.14.0-9.el8.s390x.rpm
mod_auth_mellon-diagnostics-debuginfo-0.14.0-9.el8.s390x.rpm
x86_64:
mod_auth_mellon-0.14.0-9.el8.x86_64.rpm
mod_auth_mellon-debuginfo-0.14.0-9.el8.x86_64.rpm
mod_auth_mellon-debugsource-0.14.0-9.el8.x86_64.rpm
mod_auth_mellon-diagnostics-0.14.0-9.el8.x86_64.rpm
mod_auth_mellon-diagnostics-debuginfo-0.14.0-9.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-3877
https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.1_release_notes/

8. Contact:

The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.