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Red Hat: RHSA-2012:1269-01 Moderate: qpid Connection Limit DoS

red hat
Calendar Grey September 19, 2012
Scroller Redhat
Red Hat's notice regarding the upgraded qpid packages, which rectify a security vulnerability alongside other bugs, assessed as having a moderate impact level.
Updated qpid packages that fix one security issue, multiple bugs, and add various enhancements 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/knowledge/articles/11258

Summary

Apache Qpid is a reliable, cross-platform, asynchronous messaging system that supports the Advanced Message Queuing Protocol (AMQP) in several common programming languages.
It was discovered that the Qpid daemon (qpidd) did not allow the number of connections from clients to be restricted. A malicious client could use this flaw to open an excessive amount of connections, preventing other legitimate clients from establishing a connection to qpidd. (CVE-2012-2145)
To address CVE-2012-2145, new qpidd configuration options were introduced: max-negotiate-time defines the time during which initial protocol negotiation must succeed, connection-limit-per-user and connection-limit-per-ip can be used to limit the number of connections per user and client host IP. Refer to the qpidd manual page for additional details.
In addition, the qpid-cpp, qpid-qmf, qpid-tools, and python-qpid packages have been upgraded to upstream version 0.14, which provides support for Red Hat Enterprise MRG 2.2, as well as a number of bug fixes and enhancements over the previous version. (BZ#840053, BZ#840055, BZ#840056, BZ#840058)
All users of qpid are advised to upgrade to these updated packages, which fix these issues and add these enhancements.

Topics%20covered

Topics Covered

security advisory moderate Red Hat bug fix DoS enhancement qpid

References

https://access.redhat.com/security/cve/CVE-2012-2145 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: python-qpid-qmf-0.14-14.el6_3.i686.rpm qpid-cpp-client-0.14-22.el6_3.i686.rpm qpid-cpp-client-ssl-0.14-22.el6_3.i686.rpm qpid-cpp-debuginfo-0.14-22.el6_3.i686.rpm qpid-cpp-server-0.14-22.el6_3.i686.rpm qpid-cpp-server-ssl-0.14-22.el6_3.i686.rpm qpid-qmf-0.14-14.el6_3.i686.rpm qpid-qmf-debuginfo-0.14-14.el6_3.i686.rpm ruby-qpid-qmf-0.14-14.el6_3.i686.rpm
noarch: python-qpid-0.14-11.el6_3.noarch.rpm qpid-tools-0.14-6.el6_3.noarch.rpm
x86_64: python-qpid-qmf-0.14-14.el6_3.x86_64.rpm qpid-cpp-client-0.14-22.el6_3.i686.rpm qpid-cpp-client-0.14-22.el6_3.x86_64.rpm qpid-cpp-client-ssl-0.14-22.el6_3.i686.rpm qpid-cpp-client-ssl-0.14-22.el6_3.x86_64.rpm qpid-cpp-debuginfo-0.14-22.el6_3.i686.rpm qpid-cpp-debuginfo-0.14-22.el6_3.x86_64.rpm qpid-cpp-server-0.14-22.el6_3.i686.rpm qpid-cpp-server-0.14-22.el6_3.x86_64.rpm qpid-cpp-server-ssl-0.14-22.el6_3.x86_64.rpm qpid-qmf-0.14-14.el6_3.i686.rpm qpid-qmf-0.14-14.el6_3.x86_64.rpm qpid-qmf-debuginfo-0.14-14.el6_3.i686.rpm qpid-qmf-debuginfo-0.14-14.el6_3.x86_64.rpm ruby-qpid-qmf-0.14-14.el6_3.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
noarch: python-qpid-0.14-11.el6_3.noarch.rpm qpid-tools-0.14-6.el6_3.noarch.rpm
x86_64: python-qpid-qmf-0.14-14.el6_3.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2012:1269-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2012:1269.html
Issue date: 2012-09-19

Topic

Updated qpid packages that fix one security issue, multiple bugs, and addvarious enhancements are now available for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity 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 moderate Red Hat bug fix DoS enhancement qpid

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64

Bugs Fixed

817175 - CVE-2012-2145 qpid-cpp: not closing incomplete connections exhausts file descriptors, leading to DoS

840053 - Build qpid-cpp, qpid-qmf, qpid-tools and python-qpid to support MRG 2.2 on RHEL 6.3

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