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Sicherheit: Denial of Service in Fuse Management Console
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Name: Denial of Service in Fuse Management Console
ID: RHSA-2012:1606-01
Distribution: Red Hat
Plattformen: Red Hat Fuse Enterprise Middleware
Datum: Fr, 21. Dezember 2012, 15:00
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4461


Red Hat Security Advisory

Synopsis: Moderate: Fuse Management Console 7.1.0 update
Advisory ID: RHSA-2012:1606-01
Product: Fuse Enterprise Middleware
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1606.html
Issue date: 2012-12-21
CVE Names: CVE-2011-4461

1. Summary:

Fuse Management Console 7.1.0, which fixes one security issue, various
bugs, and adds enhancements, is now available from the Red Hat Customer

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

2. Description:

The Fuse Management Console is used for managing Fuse ESB Enterprise and
Fuse MQ Enterprise deployments.

This release of Fuse Management Console 7.1.0 serves as a replacement for
Fuse Management Console 1.0.2, and includes bug fixes and enhancements.
Refer to the Fuse Management Console 7.1.0 Release Notes for information on
the most significant of these changes. The Release Notes will be available
shortly from https://access.redhat.com/knowledge/docs/

The following security issue is also fixed with this release:

It was found that the Java hashCode() method implementation was susceptible
to predictable hash collisions. A remote attacker could use this flaw to
cause the Jetty HTTP server (a component of Apache Karaf, used by Fuse
Management Console) to use an excessive amount of CPU time by sending an
HTTP request with a large number of parameters whose names map to the same
hash value. This update introduces a limit of 1000 on the number of
parameters processed per request to mitigate this issue. (CVE-2011-4461)

Red Hat would like to thank oCERT for reporting this issue. oCERT
acknowledges Julian Wälde and Alexander Klink as the original reporters.

All users of Fuse Management Console 1.0.2 as provided from the Red Hat
Customer Portal are advised to upgrade to Fuse Management Console 7.1.0.

3. Solution:

The References section of this erratum contains a download link (you must
log in to download the update).

4. Bugs fixed (http://bugzilla.redhat.com/):

781677 - CVE-2011-4461 jetty: hash table collisions CPU usage DoS

5. References:


6. Contact:

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

Copyright 2012 Red Hat, Inc.
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