In Dovecot before 2.3.9.2, an attacker can crash a push-notification driver with a crafted email when push notifications are used, because of a NULL Pointer Dereference. The email must use a group address as either the sender or the recipient.

In Dovecot before 2.3.9.2, an attacker can crash a push-notification driver with a crafted email when push notifications are used, because of a NULL Pointer Dereference. The email must use a group address as either the sender or the recipient.

dovecot23-2.3.16-1.6 on GA media

Withdrawn by the publisher.

Affected: Ubuntu:16.04:LTS: dovecot, Ubuntu:18.04:LTS: dovecot

In Dovecot before 2.3.9.2, an attacker can crash a push-notification driver with a crafted email when push notifications are used, because of a NULL Pointer Dereference. The email must use a group address as either the sender or the recipient.

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Dovecot ausnutzen, um einen Denial of Service Angriff durchzuführen.