Mailman is software to help manage email discussion lists.
A flaw in handling of UTF8 character encodings was found in Mailman. An attacker could send a carefully crafted email message to a mailing list run by Mailman which would cause that particular mailing list to stop working. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-3573 to this issue.
A flaw in date handling was found in Mailman version 2.1.4 through 2.1.6. An attacker could send a carefully crafted email message to a mailing list run by Mailman which would cause the Mailman server to crash. (CVE-2005-4153).
Users of Mailman should upgrade to this updated package, which contains backported patches to correct these issues.