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Sicherheit: Denial of Service in ipsilon
Aktuelle Meldungen Distributionen
Name: Denial of Service in ipsilon
ID: RHSA-2016:2809-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux
Datum: Mo, 21. November 2016, 16:29
Referenzen: https://access.redhat.com/security/cve/CVE-2016-8638

Originalnachricht

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: ipsilon security update
Advisory ID: RHSA-2016:2809-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2809.html
Issue date: 2016-11-21
CVE Names: CVE-2016-8638
=====================================================================

1. Summary:

An update for ipsilon is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. 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 Server (v. 7) - noarch

3. Description:

The ipsilon packages provide the Ipsilon identity provider service for
federated single sign-on (SSO). Ipsilon links authentication providers and
applications or utilities to allow for SSO. It includes a server and
utilities to configure Apache-based service providers.

Security Fix(es):

* A vulnerability was found in ipsilon in the SAML2 provider's handling of
sessions. An attacker able to hit the logout URL could determine what
service providers other users are logged in to and terminate their
sessions. (CVE-2016-8638)

This issue was discovered by Patrick Uiterwijk (Red Hat) and Howard
Johnson.

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/):

1392829 - CVE-2016-8638 ipsilon: DoS via logging out all open SAML2 sessions

6. Package List:

Red Hat Enterprise Linux Server (v. 7):

Source:
ipsilon-1.0.0-13.el7_3.src.rpm

noarch:
ipsilon-1.0.0-13.el7_3.noarch.rpm
ipsilon-authform-1.0.0-13.el7_3.noarch.rpm
ipsilon-authgssapi-1.0.0-13.el7_3.noarch.rpm
ipsilon-authldap-1.0.0-13.el7_3.noarch.rpm
ipsilon-base-1.0.0-13.el7_3.noarch.rpm
ipsilon-client-1.0.0-13.el7_3.noarch.rpm
ipsilon-filesystem-1.0.0-13.el7_3.noarch.rpm
ipsilon-infosssd-1.0.0-13.el7_3.noarch.rpm
ipsilon-persona-1.0.0-13.el7_3.noarch.rpm
ipsilon-saml2-1.0.0-13.el7_3.noarch.rpm
ipsilon-saml2-base-1.0.0-13.el7_3.noarch.rpm
ipsilon-tools-ipa-1.0.0-13.el7_3.noarch.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-2016-8638
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2016 Red Hat, Inc.
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