Stack-based buffer overflow in the base64_decode function in GWINTER.exe in Novell GroupWise (GW) WebAccess before 7.0 SP2 allows remote attackers to execute arbitrary code via long base64 content in an HTTP Basic Authentication request.Referenceshttp://download.novell.com/Download?buildid=8RF83go0nZg~http://www.vupen.com/english/advisories/2007/1455http://www.securitytracker.com/id?1017932http://secunia.com/advisories/24944http://download.novell.com/Download?buildid=O9ucpbS1bK0~http://www.zerodayinitiative.com/advisories/ZDI-07-015.htmlhttp://www.securityfocus.com/bid/23556http://www.securityfocus.com/archive/1/466212/100/0/threadedhttp://securityreason.com/securityalert/2610
