Integer overflow in kbdint.c in mod_sftp in ProFTPD 1.3.4d and 1.3.5r3 allows remote attackers to cause a denial of service (memory consumption) via a large response count value in an authentication request, which triggers a large memory allocation.
https://github.com/javierbros11/Vulnerability_scanner
https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-4243
http://www.openwall.com/lists/oss-security/2013/09/17/6
http://www.debian.org/security/2013/dsa-2767
http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.html
http://lists.opensuse.org/opensuse-updates/2013-10/msg00032.html