Scientific Linux 6: Moderate Dovecot Update CVE-2010-3707

Date: Wed, 1 Jun 2011 11:19:13 -0500
Reply-To: Troy Dawson 
Sender: Security Errata for Scientific Linux
 
From: Troy Dawson 
Subject: Security ERRATA Moderate: dovecot on SL6.x i386/x86_64
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Synopsis: Moderate: dovecot security and enhancement update
Issue Date: 2011-05-19
CVE Numbers: CVE-2010-3707
 CVE-2010-3780

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.

SL6
 i386:
 dovecot-2.0.9-2.el6.i686.rpm
 dovecot-mysql-2.0.9-2.el6.i686.rpm
 dovecot-pgsql-2.0.9-2.el6.i686.rpm
 dovecot-pigeonhole-2.0.9-2.el6.i686.rpm
 dovecot-devel-2.0.9-2.el6.i686.rpm
 x86_64:
 dovecot-2.0.9-2.el6.i686.rpm
 dovecot-2.0.9-2.el6.x86_64.rpm
 dovecot-mysql-2.0.9-2.el6.x86_64.rpm
 dovecot-pgsql-2.0.9-2.el6.x86_64.rpm
 dovecot-pigeonhole-2.0.9-2.el6.x86_64.rpm
 dovecot-devel-2.0.9-2.el6.x86_64.rpm

- Scientific Linux Development Team