Arch Linux Security Advisory ASA-201803-7

Severity: High
Date    : 2018-03-06
CVE-ID  : CVE-2017-14461 CVE-2017-15130 CVE-2017-15132
Package : dovecot
Type    : multiple issues
Remote  : Yes
Link    :


The package dovecot before version is vulnerable to multiple
issues including information disclosure and denial of service.


Upgrade to

# pacman -Syu "dovecot>="

The problems have been fixed upstream in version




- CVE-2017-14461 (information disclosure)

A specially crafted email delivered over SMTP and passed on to Dovecot
by MTA can trigger an out of bounds read resulting in potential
sensitive information disclosure of an email from another user or may
cause an application crash. In order to trigger this vulnerability, an
imap-authenticated attacker needs to send a specially crafted email
message to the server.

- CVE-2017-15130 (denial of service)

A denial of service flaw was found in dovecot before 2.2.34 and An attacker able to generate random SNI server names could
exploit TLS SNI configuration lookups, leading to excessive memory
usage, causing imap-login/pop3-login VSZ limit to be reached and the
process restarted. This happens only if Dovecot config has local_name {
} or local { } configuration blocks and attacker uses randomly
generated SNI servernames.

- CVE-2017-15132 (denial of service)

A flaw was found in dovecot before 2.2.34 and An abort of SASL
authentication results in a memory leak in dovecot's auth client used
by login processes. The leak has impact in high performance
configuration where same login processes are reused and can cause the
process to crash due to memory exhaustion.


A remote attacker is able to crash the application or disclose
information by sending a specially crafted email.


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