The malloc subsystem in libc in IBM AIX 5.3 and 6.1 allows local users to create or overwrite arbitrary files via a symlink attack on the log file associated with the MALLOCDEBUG environment variable.Referenceshttp://aix.software.ibm.com/aix/efixes/security/libc_advisory.aschttp://www.ibm.com/support/docview.wss?uid=isg1IZ50445https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6276http://www.ibm.com/support/docview.wss?uid=isg1IZ50447http://www.osvdb.org/54617http://www.ibm.com/support/docview.wss?uid=isg1IZ50121http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=802http://www.securityfocus.com/bid/35034https://www.exploit-db.com/exploits/9306http://securitytracker.com/id?1022261http://www.vupen.com/english/advisories/2009/1380https://exchange.xforce.ibmcloud.com/vulnerabilities/50636http://www.ibm.com/support/docview.wss?uid=isg1IZ50517http://secunia.com/advisories/35146http://www.ibm.com/support/docview.wss?uid=isg1IZ50500http://www.ibm.com/support/docview.wss?uid=isg1IZ50129http://www.ibm.com/support/docview.wss?uid=isg1IZ50139
