Off-by-one error in the POP3_readmsg function in popclient 3.0b6 allows remote attackers to cause a denial of service (application crash) via an e-mail message with a certain line length, which leads to a buffer overflow.
https://exchange.xforce.ibmcloud.com/vulnerabilities/16538
http://www.securityfocus.com/bid/10625
http://www.grok.org.uk/advisories/popclient.html
http://marc.info/?l=bugtraq&m=108852915403293&w=2
http://lists.grok.org.uk/pipermail/full-disclosure/2004-June/023147.html