1.263.1. RHSA-2011:0426: Moderate security update
An updated spice-xpi package that fixes two security issues is now available for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
The Simple Protocol for Independent Computing Environments (SPICE) is a remote display protocol used in Red Hat Enterprise Linux for viewing virtualized guests running on the Kernel-based Virtual Machine (KVM) hypervisor, or on Red Hat Enterprise Virtualization Hypervisor.
The spice-xpi package provides a plug-in that allows the SPICE client to run from within Mozilla Firefox.
An uninitialized pointer use flaw was found in the SPICE Firefox plug-in. If a user were tricked into visiting a malicious web page with Firefox while the SPICE plug-in was enabled, it could cause Firefox to crash or, possibly, execute arbitrary code with the privileges of the user running Firefox. (CVE-2011-1179)
It was found that the SPICE Firefox plug-in used a predictable name for one of its log files. A local attacker could use this flaw to conduct a symbolic link attack, allowing them to overwrite arbitrary files accessible to the user running Firefox. (CVE-2011-0012)
Users of spice-xpi should upgrade to this updated package, which contains backported patches to correct these issues. After installing the update, Firefox must be restarted for the changes to take effect.
1.263.2. RHBA-2011:0748: bug fix update
An updated spice-xpi package that fixes three bugs is now available.
The Simple Protocol for Independent Computing Environments (SPICE) is a remote display protocol designed for virtual environments. SPICE users can view a virtualized desktop or server from the local system or any system with network access to the server. SPICE is available for a variety of machine architectures and operating systems.
SPICE is used in Red Hat Enterprise Linux for viewing virtualized guests running on the KVM hypervisor or on Red Hat Enterprise Virtualization Hypervisors. This package contains a SPICE extension that allows the client to be used from a web browser.
Bugs fixed in this updated package include:
Version was added to plugin name string. This allows the plugin version to be discovered from within the browser. (
BZ#672761)
Location and name of logfile & unix-domain-socket was changed, they are now placed in ~/.spicec/ and the name prefix is now spice-xpi. (
BZ#630601)
spicec is now searched for in /usr/bin, if not found in /usr/libexec. (
BZ#672497)
Users planning to use the Red Hat Enterprise Virtualization Manager are advised to upgrade to this updated spice-xpi package.
