RHEL 6 / 7 : dovecot (RHSA-2014:0790)

This script is Copyright (C) 2014 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated dovecot packages that fix one security issue are now available
for Red Hat Enterprise Linux 6 and 7.

The Red Hat Security Response Team has rated this update as having
Moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

Dovecot is an IMAP server, written with security primarily in mind,
for Linux and other UNIX-like systems. It also contains a small POP3
server. It supports mail in both the maildir or mbox format. The SQL
drivers and authentication plug-ins are provided as subpackages.

It was discovered that Dovecot did not properly discard connections
trapped in the SSL/TLS handshake phase. A remote attacker could use
this flaw to cause a denial of service on an IMAP/POP3 server by
exhausting the pool of available connections and preventing further,
legitimate connections to the IMAP/POP3 server to be made.
(CVE-2014-3430)

All dovecot users are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. After
installing the updated packages, the dovecot service will be restarted
automatically.

See also :

https://www.redhat.com/security/data/cve/CVE-2014-3430.html
http://rhn.redhat.com/errata/RHSA-2014-0790.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)

Family: Red Hat Local Security Checks

Nessus Plugin ID: 76244 ()

Bugtraq ID:

CVE ID: CVE-2014-3430