Buffer overflow in Symantec Mail Security for SMTP 5.0 before Patch 175 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted headers in an e-mail message. NOTE: some information was obtained from third party sources.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32781
http://www.vupen.com/english/advisories/2007/0799
http://www.securitytracker.com/id?1017716
http://www.securityfocus.com/bid/22782
http://www.kb.cert.org/vuls/id/875633