Scientific Linux: 2010-08-25 Moderate: spice-xpi Local Attack Risk

Date: Wed, 25 Aug 2010 15:36:33 -0500
Reply-To: Troy Dawson 
Sender: Security Errata for Scientific Linux
 
From: Troy Dawson 
Subject: Security ERRATA Moderate: spice-xpi on SL5.x i386/x86_64
Comments: To: "This email address is being protected from spambots. You need JavaScript enabled to view it."
 

Synopsis:	Moderate: spice-xpi security and bug fix update
Issue date:	2010-08-25
CVE Names:	CVE-2010-2792 CVE-2010-2794

The spice-xpi package provides a plug-in that allows the SPICE client to
run from within Mozilla Firefox.

A race condition was found in the way the SPICE Firefox plug-in and the
SPICE client communicated. A local attacker could use this flaw to trick
the plug-in and the SPICE client into communicating over an
attacker-controlled socket, possibly gaining access to authentication
details, or resulting in a man-in-the-middle attack on the SPICE
connection. (CVE-2010-2792)

It was found that the SPICE Firefox plug-in used a predictable name for
its log file. 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-2010-2794)

This update also fixes the following bugs:

* a bug prevented users of Red Hat Enterprise Linux 5.5, with all
updates applied, from running the SPICE Firefox plug-in when using
Firefox 3.6.4. With this update, the plug-in works correctly with
Firefox 3.6.4 and the latest version in Red Hat Enterprise Linux 5.5,
Firefox 3.6.7. (BZ#618244)

* unused code has been removed during source code refactoring. This also
resolves a bug in the SPICE Firefox plug-in that caused it to close
random file descriptors. (BZ#594006, BZ#619067)

Note: This update should be installed together with the qspice-client
security update.

After installing the update, Firefox must be restarted for the changes
to take effect.

SL 5.x

 SRPMS:
spice-xpi-2.2-2.3.el5_5.src.rpm
 i386:
spice-xpi-2.2-2.3.el5_5.i386.rpm
 x86_64:
spice-xpi-2.2-2.3.el5_5.x86_64.rpm

-Connie Sieh
-Troy Dawson