Eval injection vulnerability in (1) courier-imapd.indirect and (2) courier-pop3d.indirect in Courier-IMAP before 4.0.6-r2, and 4.1.x before 4.1.2-r1, on Gentoo Linux allows remote attackers to execute arbitrary commands via the XMAILDIR variable, related to the LOGINRUN variable.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33805
http://www.securityfocus.com/bid/23589
http://security.gentoo.org/glsa/glsa-200704-18.xml