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Red Hat Security Advisory 2012-0987-04

Red Hat Security Advisory 2012-0987-04
Posted Jun 20, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0987-04 - The SBLIM CIM Client is a class library for Java applications that provides access to CIM servers using the CIM Operations over HTTP protocol defined by the DMTF standards. It was found that the Java HashMap implementation was susceptible to predictable hash collisions. SBLIM uses HashMap when parsing XML inputs. A specially-crafted CIM-XML message from a WBEM server could cause a SBLIM client to use an excessive amount of CPU. Randomization has been added to help avoid collisions.

tags | advisory, java, web, protocol
systems | linux, redhat
advisories | CVE-2012-2328
MD5 | fdfa79a877a2c06ff4ffa36aa3055766

Red Hat Security Advisory 2012-0987-04

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

Synopsis: Low: sblim-cim-client2 security update
Advisory ID: RHSA-2012:0987-04
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0987.html
Issue date: 2012-06-20
CVE Names: CVE-2012-2328
=====================================================================

1. Summary:

Updated sblim-cim-client2 packages that fix one security issue are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having low
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. Relevant releases/architectures:

Red Hat Enterprise Linux Server (v. 6) - noarch
Red Hat Enterprise Linux Server Optional (v. 6) - noarch
Red Hat Enterprise Linux Workstation (v. 6) - noarch
Red Hat Enterprise Linux Workstation Optional (v. 6) - noarch

3. Description:

The SBLIM (Standards-Based Linux Instrumentation for Manageability) CIM
(Common Information Model) Client is a class library for Java applications
that provides access to CIM servers using the CIM Operations over HTTP
protocol defined by the DMTF (Distributed Management Task Force) standards.

It was found that the Java HashMap implementation was susceptible to
predictable hash collisions. SBLIM uses HashMap when parsing XML inputs. A
specially-crafted CIM-XML message from a WBEM (Web-Based Enterprise
Management) server could cause a SBLIM client to use an excessive amount of
CPU. Randomization has been added to help avoid collisions. (CVE-2012-2328)

All users of sblim-cim-client2 are advised to upgrade to these updated
packages, which contain a backported patch to resolve this issue.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

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

819733 - CVE-2012-2328 sblim: hash table collisions CPU usage DoS

6. Package List:

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/sblim-cim-client2-2.1.3-2.el6.src.rpm

noarch:
sblim-cim-client2-2.1.3-2.el6.noarch.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/sblim-cim-client2-2.1.3-2.el6.src.rpm

noarch:
sblim-cim-client2-javadoc-2.1.3-2.el6.noarch.rpm
sblim-cim-client2-manual-2.1.3-2.el6.noarch.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/sblim-cim-client2-2.1.3-2.el6.src.rpm

noarch:
sblim-cim-client2-2.1.3-2.el6.noarch.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/sblim-cim-client2-2.1.3-2.el6.src.rpm

noarch:
sblim-cim-client2-javadoc-2.1.3-2.el6.noarch.rpm
sblim-cim-client2-manual-2.1.3-2.el6.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/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2012-2328.html
https://access.redhat.com/security/updates/classification/#low

8. 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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