CRLF injection vulnerability in the mb_send_mail function in PHP before 5.1.0 might allow remote attackers to inject arbitrary e-mail headers via line feeds (LF) in the "To" address argument.
https://www.ubuntu.com/usn/usn-232-1/
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10332
https://exchange.xforce.ibmcloud.com/vulnerabilities/23270
http://www.vupen.com/english/advisories/2006/2685
http://www.turbolinux.com/security/2006/TLSA-2006-38.txt
http://www.securityfocus.com/bid/15571
http://www.securityfocus.com/archive/1/419504/100/0/threaded
http://www.php.net/release_5_1_0.php
http://www.mandriva.com/security/advisories?name=MDKSA-2005:238
http://support.avaya.com/elmodocs2/security/ASA-2006-129.htm
http://securitytracker.com/id?1015296
http://secunia.com/advisories/20951
http://secunia.com/advisories/20210
http://secunia.com/advisories/19832
http://secunia.com/advisories/18198
http://secunia.com/advisories/18054
http://secunia.com/advisories/17763