CVE-2012-4425 Information

Description

libgio when used in setuid or other privileged programs in spice-gtk and possibly other products allows local users to gain privileges and execute arbitrary code via the DBUS_SYSTEM_BUS_ADDRESS environment variable. NOTE: it could be argued that this is a vulnerability in the applications that do not cleanse environment variables not in libgio itself.

Reference

http://permalink.gmane.org/gmane.linux.redhat.fedora.extras.cvs/853051 http://rhn.redhat.com/errata/RHSA-2012-1284.html http://www.exploit-db.com/exploits/21323 http://www.openwall.com/lists/oss-security/2012/09/12/6 http://www.openwall.com/lists/oss-security/2012/09/14/2 http://www.openwall.com/lists/oss-security/2012/09/17/2 http://www.securityfocus.com/bid/55555 http://www.spinics.net/lists/spice-devel/msg01940.html https://bugzilla.redhat.com/show_bug.cgi?id=857283