IBM Informix Dynamic Server 10.UC3RC1 Trial for Linux and possibly other versions creates /tmp/installserver.txt with insecure permissions, which allows local users to append data to arbitrary files via a symlink attack.
archives.neohapsis.com/archives/fulldisclosure/2006-10/0013.html
secunia.com/advisories/22223
securityreason.com/securityalert/1686
www.osvdb.org/29349
www.securityfocus.com/archive/1/447501/100/0/threaded
www.securityfocus.com/bid/20300
www.vupen.com/english/advisories/2006/3883
exchange.xforce.ibmcloud.com/vulnerabilities/29297
exchange.xforce.ibmcloud.com/vulnerabilities/29300