Security Advisory Moderate: haproxy security update

Advisory: RHSA-2013:0729-1
Type: Security Advisory
Severity: Moderate
Issued on: 2013-04-09
Last updated on: 2013-04-09
Affected Products: Red Hat OpenShift Enterprise 1
CVEs ( CVE-2013-1912


An updated haproxy package that fixes one security issue is now available
for Red Hat OpenShift Enterprise 1.1.3.

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 buffer overflow flaw was found in the way HAProxy handled pipelined HTTP
requests. A remote attacker could send pipelined HTTP requests that would
cause HAProxy to crash or, potentially, execute arbitrary code with the
privileges of the user running HAProxy. This issue only affected systems
using all of the following combined configuration options: HTTP keep alive
enabled, HTTP keywords in TCP inspection rules, and request appending
rules. (CVE-2013-1912)

In Red Hat OpenShift Enterprise, the HAProxy cartridge is added to your
application when you select to have your application scaled. Due to the
way this cartridge is currently used in Red Hat OpenShift Enterprise, the
CVE-2013-1912 issue is not exploitable.

Red Hat would like to thank Willy Tarreau of HAProxy upstream for reporting
this issue. Upstream acknowledges Yves Lafon from the W3C as the original

Users of Red Hat OpenShift Enterprise 1.1.3 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-1.4.22-5.el6op.src.rpm     MD5: e169fc4e15c9dcc7afe592440a80c050
SHA-256: 3fa8385cab4b9f24b209d4e72612c6f958f17c74cffc5babefc95d9887fac4d5
haproxy-1.4.22-5.el6op.x86_64.rpm     MD5: 1f5cabf81f94abc526b226b6ac607d15
SHA-256: 8fc1997cf5663bd4d616037f56f26b5607d083f00989ae1bbc8f616df58604c8
haproxy-debuginfo-1.4.22-5.el6op.x86_64.rpm     MD5: c07453d77ad09bd186c3b4b63a67f8d4
SHA-256: faff941c50ee70fdd3b904bc80b779e008b1d2cfdf790dd7c075c21d8da715d3
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

947581 - CVE-2013-1912 haproxy: rewrite rules flaw can lead to arbitrary code execution


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