rpc-gssd in nfs-utils before 1.2.8 performs reverse DNS resolution for server names during GSSAPI authentication, which might allow remote attackers to read otherwise-restricted files via DNS spoofing attacks.
https://exchange.xforce.ibmcloud.com/vulnerabilities/85331
https://bugzilla.redhat.com/show_bug.cgi?id=948072
http://www.securityfocus.com/bid/58854
http://marc.info/?l=linux-nfs&m=136500502805121&w=2
http://marc.info/?l=linux-nfs&m=136491998607561&w=2
http://lists.opensuse.org/opensuse-updates/2013-06/msg00172.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00146.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00142.html