Security Advisory Moderate: haproxy security update

Advisory: RHSA-2013:1204-1
Type: Security Advisory
Severity: Moderate
Issued on: 2013-09-04
Last updated on: 2013-09-04
Affected Products: Red Hat OpenShift Enterprise 1
CVEs ( CVE-2013-2175


An updated haproxy package that fixes one security issue is now available
for Red Hat OpenShift Enterprise 1.2.2.

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.

HAProxy provides high availability, load balancing, and proxying for TCP
and HTTP-based applications.

A flaw was found in the way HAProxy handled requests when the proxy's
configuration ("/etc/haproxy/haproxy.cfg") had certain rules that use the
hdr_ip criterion. A remote attacker could use this flaw to crash HAProxy
instances that use the affected configuration. (CVE-2013-2175)

In Red Hat OpenShift Enterprise, the HAProxy cartridge is added to your
application when you select to have your application scaled.

Red Hat would like to thank HAProxy upstream for reporting this issue.
Upstream acknowledges David Torgerson as the original reporter.

Users of Red Hat OpenShift Enterprise 1.2.2 are advised to upgrade to this
updated package, which contains a backported patch to correct this issue.


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

Updated packages

Red Hat OpenShift Enterprise 1

haproxy-1.4.22-6.el6op.src.rpm     MD5: ed0cc8ed8726531a4c37fafb72897801
SHA-256: 513569725b950c7cf1b6fede4e2793cd7eaba5ee799b50d3ad5a0ea8951efde2
haproxy-1.4.22-6.el6op.x86_64.rpm     MD5: 4271ee32d13c7875463f695c25cc7f73
SHA-256: 966eb94d3d3b571243b242efdd464253b4e2687c44d87996259ed277d6ac6706
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

974259 - CVE-2013-2175 haproxy: http_get_hdr()/get_ip_from_hdr2() MAX_HDR_HISTORY handling denial of service


These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:

The Red Hat security contact is More contact details at