Scientific Linux Security Update : dovecot on SL6.x i386/x86_64

This script is Copyright (C) 2012 Tenable Network Security, Inc.


Synopsis :

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

Description :

Dovecot is an IMAP server for Linux, UNIX, and similar operating
systems, primarily written with security in mind.

A flaw was found in the way Dovecot handled SIGCHLD signals. If a
large amount of IMAP or POP3 session disconnects caused the Dovecot
master process to receive these signals rapidly, it could cause the
master process to crash. (CVE-2010-3780)

A flaw was found in the way Dovecot processed multiple Access Control
Lists (ACL) defined for a mailbox. In some cases, Dovecot could fail
to apply the more specific ACL entry, possibly resulting in more
access being granted to the user than intended. (CVE-2010-3707)

This update also adds the following enhancement :

- This erratum upgrades Dovecot to upstream version 2.0.9,
providing multiple fixes for the 'dsync' utility and
improving overall performance. Refer to the
'/usr/share/doc/dovecot-2.0.9/ChangeLog' file after
installing this update for further information about the
changes. (BZ#637056)

Users of dovecot are advised to upgrade to these updated packages,
which resolve these issues and add this enhancement. After installing
the updated packages, the dovecot service will be restarted
automatically.

See also :

http://www.nessus.org/u?e0c09cc4
https://bugzilla.redhat.com/show_bug.cgi?id=637056

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.5
(CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 61039 ()

Bugtraq ID:

CVE ID: CVE-2010-3707
CVE-2010-3780