Intrusion Prevention

Dovecot.rfc822_parse_domain.Out.of.Bounds.Read

Description

This indicates an attack attempt to exploit an Out Of Bounds Read Vulnerability in Dovecot.
The vulnerability is due to an error in the vulnerable application when handling a maliciously crafted SMTP packet. An attacker can exploit this to disclose arbitrary files or cause a denial of service condition on the affected machine via a crafted SMTP packet.

Affected Products

Dovecot Prior to 2.2.34

Impact

Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems.
Denial of Service: Remote attackers can crash vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor:
https://www.dovecot.org/list/dovecot-news/2018-February/000370.html

CVE References

CVE-2017-14461