The ReadRequestFromClient function in server/os/io.c in Network Audio System (NAS) before 1.8a SVN 237 allows remote attackers to cause a denial of service (crash) via multiple simultaneous connections, which triggers a NULL pointer dereference.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33059
http://www.vupen.com/english/advisories/2007/0997
http://www.ubuntu.com/usn/usn-446-1
http://www.securitytracker.com/id?1017822
http://www.securityfocus.com/bid/23017
http://www.securityfocus.com/archive/1/464606/30/7230/threaded
http://www.radscan.com/nas/HISTORY
http://www.mandriva.com/security/advisories?name=MDKSA-2007:065
http://www.debian.org/security/2007/dsa-1273
http://security.gentoo.org/glsa/glsa-200704-20.xml
http://secunia.com/advisories/24980
http://secunia.com/advisories/24638
http://secunia.com/advisories/24628
http://secunia.com/advisories/24601