Thank you for reading the Linux Advisory Watch Security Newsletter. The purpose of this document is to provide our readers with a quick summary of each week's vendor security bulletins and pointers on methods to improve the security posture of your open source system. Vulnerabilities affect nearly every vendor virtually every week, so be sure to read through to find the updates your distributor have made available.

LinuxSecurity.com Feature Extras:

Password guessing with Medusa 2.0 - Medusa was created by the fine folks at foofus.net, in fact the much awaited Medusa 2.0 update was released in February of 2010. For a complete change log please visit

Password guessing as an attack vector - Using password guessing as an attack vector. Over the years we've been taught a strong password must be long and complex to be considered secure. Some of us have taken that notion to heart and always ensure our passwords are strong. But some don't give a second thought to the complexity or length of our password.

(Mar 28)

Several cross-site-scripting and denial of service vulnerabilities were discovered in Ruby on Rails, a Ruby framework for web application development. [More...]
(Mar 26)

It was discovered that Icinga, a host and network monitoring system, contains several buffer overflows in the history.cgi CGI program. For the stable distribution (squeeze), this problem has been fixed in [More...]
(Mar 26)

Brad Hill of iSEC Partners discovered that many XML implementations are vulnerable to external entity expansion issues, which can be used for various purposes such as firewall circumvention, disguising an IP address, and denial-of-service. libxml2 was susceptible to these [More...]
Red Hat: 2013:0689-01: bind: Important Advisory (Mar 28)

Updated bind packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having [More...]
Red Hat: 2013:0690-01: bind97: Important Advisory (Mar 28)

Updated bind97 packages that fix one security issue are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having [More...]
Red Hat: 2013:0687-01: pixman: Moderate Advisory (Mar 27)

Updated pixman packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2013:0685-01: perl: Moderate Advisory (Mar 26)

Updated perl packages that fix multiple security issues now available for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having [More...]
Red Hat: 2013:0683-01: axis: Moderate Advisory (Mar 25)

Updated axis packages that fix one security issue are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2013:0671-01: openstack-packstack: Moderate Advisory (Mar 21)

An updated openstack-packstack package that fixes one security issue and several bugs is now available for Red Hat OpenStack Folsom. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2013:0670-01: Django: Moderate Advisory (Mar 21)

Updated Django packages that fix multiple security issues are now available for Red Hat OpenStack Folsom. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2013:0658-01: openstack-cinder: Moderate Advisory (Mar 21)

Updated openstack-cinder packages that fix two security issues and add one enhancement are now available for Red Hat OpenStack Folsom. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2013:0669-01: qt: Moderate Advisory (Mar 21)

Updated qt packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2013:0657-01: openstack-nova: Moderate Advisory (Mar 21)

Updated openstack-nova packages that fix two security issues, several bugs, and add an enhancement are now available for Red Hat OpenStack Folsom. The Red Hat Security Response Team has rated this update as having moderate [More...]
Red Hat: 2013:0668-01: boost: Moderate Advisory (Mar 21)

Updated boost packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having moderate [More...]
(Mar 28)

New libssh packages are available for Slackware 14.0, and -current to fix a security issue. [More Info...]
(Mar 27)

New dhcp packages are available for Slackware 12.1, 12.2, 13.0, 13.1, 13.37, 14.0, and -current to fix a security issue. [More Info...]
(Mar 27)

New bind packages are available for Slackware 12.1, 12.2, 13.0, 13.1, 13.37, 14.0, and -current to fix a security issue. [More Info...]
(Mar 24)

New php packages are available for Slackware 12.1, 12.2, 13.0, 13.1, 13.37, 14.0, and -current to fix security issues. [More Info...]
Ubuntu: 1782-1: libxml2 vulnerability (Mar 28)

libxml2 could be made to hang if it received specially crafted input.
Ubuntu: 1781-1: Linux kernel (OMAP4) vulnerabilities (Mar 26)

Several security issues were fixed in the kernel.
Ubuntu: 1780-1: Ruby vulnerability (Mar 25)

Ruby could be made to hang if it received specially crafted input.
Ubuntu: 1779-1: GNOME Online Accounts vulnerability (Mar 25)

GNOME Online Accounts could be made to expose sensitive information overthe network.
Ubuntu: 1732-3: OpenSSL vulnerability (Mar 25)

Several security issues were fixed in OpenSSL.
Ubuntu: 1778-1: Linux kernel (OMAP4) vulnerabilities (Mar 22)

Several security issues were fixed in the kernel.
Ubuntu: 1776-1: Linux kernel (EC2) vulnerabilities (Mar 22)

Several security issues were fixed in the kernel.
Ubuntu: 1775-1: Linux kernel vulnerabilities (Mar 22)

Several security issues were fixed in the kernel.
Ubuntu: 1774-1: Linux kernel (OMAP4) vulnerabilities (Mar 21)

Several security issues were fixed in the kernel.
Ubuntu: 1773-1: ClamAV vulnerabilities (Mar 21)

Several security issues were fixed in ClamAV.