lib-mail/message-header-parser.c in Dovecot 1.2.x before 1.2.17 and 2.0.x before 2.0.13 does not properly handle '\0' characters in header names, which allows remote attackers to cause a denial of service (daemon crash or mailbox corruption) via a crafted e-mail message.
https://hermes.opensuse.org/messages/8581790
https://exchange.xforce.ibmcloud.com/vulnerabilities/67589
https://bugzilla.redhat.com/show_bug.cgi?id=706286
http://www.ubuntu.com/usn/USN-1143-1
http://www.securityfocus.com/bid/47930
http://www.redhat.com/support/errata/RHSA-2011-1187.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:101
http://www.dovecot.org/doc/NEWS-2.0
http://www.dovecot.org/doc/NEWS-1.2
http://www.debian.org/security/2011/dsa-2252
http://secunia.com/advisories/44827
http://secunia.com/advisories/44771
http://secunia.com/advisories/44756
http://secunia.com/advisories/44712
http://secunia.com/advisories/44683
http://openwall.com/lists/oss-security/2011/05/19/6
http://openwall.com/lists/oss-security/2011/05/19/3
http://openwall.com/lists/oss-security/2011/05/18/4
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060825.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060815.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061384.html
http://hg.dovecot.org/dovecot-1.1/rev/3698dfe0f21c