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 is enabled, it could cause Firefox to crash or, possibly, execute arbitrary code with the privileges of the user running Firefox.
Created attachment 487006 [details] Resolution of the security issue (nsPluginInstance, getters and setters)
Created attachment 487008 [details] I also attach spec file patch for rpmbuild.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Via RHSA-2011:0427 https://rhn.redhat.com/errata/RHSA-2011-0427.html
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2011:0426 https://rhn.redhat.com/errata/RHSA-2011-0426.html
Fixed.