The SUSE coreutils-i18n.patch for GNU coreutils allows context-dependent attackers to cause a denial of service (segmentation fault and crash) via a long string to the join command, when using the -i switch, which triggers a stack-based buffer overflow in the alloca function.
https://bugzilla.novell.com/show_bug.cgi?id=798541
http://rhn.redhat.com/errata/RHSA-2013-1652.html