Array index error in the xrdp_bitmap_def_proc function in xrdp/funcs.c in xrdp 0.4.1 and earlier allows remote attackers to execute arbitrary code via vectors that manipulate the value of the edit_pos structure member.
https://exchange.xforce.ibmcloud.com/vulnerabilities/48093
http://www.securityfocus.com/bid/33371
http://openwall.com/lists/oss-security/2009/01/12/3
http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html