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Red Hat 6: RHSA-2012:0987-04 Low: sblim-cim-client2 CPU DoS Issue

red hat
Calendar Grey June 20, 2012
Dist Redhat Esm H88
Red Hat has issued a security advisory regarding sblim-cim-client2, which pertains to a low-level security update that carries potential risks for CPU DoS scenarios.
Updated sblim-cim-client2 packages that fix one security issue are now available for Red Hat Enterprise Linux 6

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/articles/11258

Summary

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.

Topics%20covered

Topics Covered

security advisory security update Red Hat DoS issue low severity sblim-cim-client2 cpu issues

References

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

Package List

Red Hat Enterprise Linux Server (v. 6):
Source:
noarch: sblim-cim-client2-2.1.3-2.el6.noarch.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
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:
noarch: sblim-cim-client2-2.1.3-2.el6.noarch.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
Source:
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


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2012:0987-04
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:0987.html
Issue date: 2012-06-20

Topic

Updated sblim-cim-client2 packages that fix one security issue are nowavailable for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having lowsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat DoS issue low severity sblim-cim-client2 cpu issues

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

Bugs Fixed

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

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