CVE-2011-1929: Improper Input Validation

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...