RHSA-2012:1269 - Security Advisory

Topic

Updated qpid packages that fix one security issue, multiple bugs, and add
various enhancements are now available for Red Hat Enterprise Linux 6.

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.

Description

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.

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

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.3 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.3 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.3 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.3 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 817175 - CVE-2012-2145 qpid-cpp: not closing incomplete connections exhausts file descriptors, leading to DoS
• BZ - 840053 - Build qpid-cpp, qpid-qmf, qpid-tools and python-qpid to support MRG 2.2 on RHEL 6.3

CVEs

• CVE-2012-2145

References

• https://access.redhat.com/security/updates/classification/#moderate