The (1) SAPDatabase and (2) SAPInstance scripts in OCF Resource Agents (aka resource-agents or cluster-agents) 1.0.3 in Linux-HA place a zero-length directory name in the LD_LIBRARY_PATH, which allows local users to gain privileges via a Trojan horse shared library in the current working directory.
bugs.debian.org/cgi-bin/bugreport.cgi?bug=598549
secunia.com/advisories/43372
security.gentoo.org/glsa/glsa-201110-18.xml
www.redhat.com/support/errata/RHSA-2011-0264.html
www.redhat.com/support/errata/RHSA-2011-1000.html
www.redhat.com/support/errata/RHSA-2011-1580.html
www.vupen.com/english/advisories/2011/0416
bugzilla.redhat.com/show_bug.cgi?id=639044