Mandriva Linux Security Advisory 2013-245 - 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. The updated packages have been patched to correct this issue.
e4f9f86ca1ec517a8ee256a4c2d1c6b5b638a8a2f18528122bb728d1c874c6cd