This indicates an attempt to exploit a Denial of Service vulnerability in SASL authentication component of Dovecot server.
The vulnerability is due to a validation error when the vulnerable software handles a crafted username when processing SASL authentication if auth-policy component has been activated. A remote attacker may be able to exploit this to cause a denial of service condition on the affected system.

affected-products-logoAffected Products

Dovecot Dovecot 2.2.25 through

Impact logoImpact

Denial of Service: Remote attackers can crash vulnerable systems.

recomended-action-logoRecommended Actions

Apply the most recent upgrade or patch from the vendor.

Telemetry logoTelemetry


IPS (Regular DB)
IPS (Extended DB)