CVE-2024-23184

Having a large number of address headers From, To, Cc, Bcc, etc. becomes excessively CPU intensive. With 100k header lines CPU usage is already 12 seconds, and in a production environment we observed 500k header lines taking 18 minutes to parse. Since this can be triggered by external actors...

CVE-2024-23184

CVE-2024-23184 affects the Dovecot IMAP/POP3 server. The root issue is that parsing a large number of email address headers (From, To, Cc, Bcc, etc.) is highly CPU-intensive, leading to potential denial of service when attackers send crafted messages that trigger resource exhaustion. The availabl...