Oracle Linux 6 / 7 : dovecot (ELSA-2014-0790)

This script is Copyright (C) 2014-2015 Tenable Network Security, Inc.


Synopsis :

The remote Oracle Linux host is missing one or more security updates.

Description :

From Red Hat Security Advisory 2014:0790 :

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://oss.oracle.com/pipermail/el-errata/2014-July/004283.html
https://oss.oracle.com/pipermail/el-errata/2014-June/004215.html

Solution :

Update the affected dovecot packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.3
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 76232 ()

Bugtraq ID: 67306

CVE ID: CVE-2014-3430

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