Stack-based buffer overflow in the pr_ctrls_recv_request function in ctrls.c in the mod_ctrls module in ProFTPD before 1.3.1rc1 allows local users to execute arbitrary code via a large reqarglen length value.
http://secunia.com/advisories/23371
http://secunia.com/advisories/23392
http://secunia.com/advisories/23473
http://secunia.com/advisories/24163
http://security.gentoo.org/glsa/glsa-200702-02.xml
https://exchange.xforce.ibmcloud.com/vulnerabilities/30906
https://www.exploit-db.com/exploits/3330
http://www.coresecurity.com/?module=ContentMod&action=item&id=1594
http://www.mandriva.com/security/advisories?name=MDKSA-2006:232