The Simple Protocol for Independent Computing Environments (SPICE) is aremote display protocol used in Red Hat Enterprise Linux for viewingvirtualized 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 torun from within Mozilla Firefox.A race condition was found in the way the SPICE Firefox plug-in and theSPICE client communicated. A local attacker could use this flaw to trickthe plug-in and the SPICE client into communicating over anattacker-controlled socket, possibly gaining access to authenticationdetails, or resulting in a man-in-the-middle attack on the SPICEconnection. (CVE-2010-2792)It was found that the SPICE Firefox plug-in used a predictable name for itslog file. A local attacker could use this flaw to conduct a symbolic linkattack, allowing them to overwrite arbitrary files accessible to the userrunning Firefox. (CVE-2010-2794)This update also fixes the following bugs:Note: This update should be installed together with the RHSA-2010:0632qspice-client update: https://rhn.redhat.com/errata/RHSA-2010-0632.htmlUsers of spice-xpi should upgrade to this updated package, which containsbackported patches to correct these issues. After installing the update,Firefox must be restarted for the changes to take effect.