[RHSA-2013:0126-01] Low: squirrelmail security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Low: squirrelmail security and bug fix update

Advisory ID: RHSA-2013:0126-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0126.html

Issue date: 2013-01-08

CVE Names: CVE-2012-2124

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1. Summary:

 

An updated squirrelmail package that fixes one security issue and several

bugs is now available for Red Hat Enterprise Linux 5.

 

The Red Hat Security Response Team has rated this update as having low

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.

 

2. Relevant releases/architectures:

 

RHEL Desktop Workstation (v. 5 client) - noarch

Red Hat Enterprise Linux (v. 5 server) - noarch

 

3. Description:

 

SquirrelMail is a standards-based webmail package written in PHP.

 

The SquirrelMail security update RHSA-2012:0103 did not, unlike the erratum

text stated, correct the CVE-2010-2813 issue, a flaw in the way

SquirrelMail handled failed log in attempts. A user preference file was

created when attempting to log in with a password containing an 8-bit

character, even if the username was not valid. A remote attacker could use

this flaw to eventually consume all hard disk space on the target

SquirrelMail server. (CVE-2012-2124)

 

This update also fixes the following bugs:

 

* Prior to this update, SquirrelMail could not decode multi-line subjects

properly. Consequently, the decode header internationalization option did

not properly handle new lines or tabs at the beginning of the lines. This

bug has been fixed and SquirrelMail now works correctly in the described

scenario. (BZ#241861)

 

* Due to a bug, attachments written in HTML code on the Windows operating

system were not displayed properly when accessed with SquirrelMail; the

"!=null" string was trimmed to "!ull". This bug has been fixed and the

attachments are now displayed correctly in such a case. (BZ#359791)

 

* Previously, e-mail messages with a Unique Identifier (UID) larger than

2^31 bytes were unreadable when using the squirrelmail package. With this

patch the squirrelmail package is able to read all messages regardless of

the UIDs size. (BZ#450780)

 

* Due to a bug, a PHP script did not assign the proper character set to

requested variables. Consequently, SquirrelMail could not display any

e-mails. The underlying source code has been modified and now the

squirrelmail package assigns the correct character set. (BZ#475188)

 

* Due to the incorrect internationalization option located at the i18n.php

file, the squirrelmail package could not use the GB 2312 character set. The

i18n.php file has been fixed and the GB 2312 character set works correctly

in the described scenario. (BZ#508686)

 

* Previously, the preg_split() function contained a misspelled constant,

PREG_SPLIT_NI_EMPTY, which could cause SquirrelMail to produce error

messages. The name of the constant has been corrected to

PREG_SPLIT_NO_EMPTY, and SquirrelMail no longer produces error messages in

this scenario. (BZ#528758)

 

* Due to Security-Enhanced Linux (SELinux) settings, sending e-mails from

the SquirrelMail web interface was blocked. This update adds a note to the

SquirrelMail documentation that describes how to set the SELinux options to

allow sending e-mails from the SquirrelMail web interface. (BZ#745380)

 

* Previously, the squirrelmail package did not comply with the RFC 2822

specification about line length limits. Consequently, attachments with

lines longer than 998 characters could not be forwarded using SquirrelMail.

This patch modifies the underlying source code and now SquirrelMail

complies with the RFC 2822 specification as expected. (BZ#745469)

 

* Prior to this update, the squirrelmail package required the php-common

script instead of the mod_php script during installation or upgrade of the

package, which led to a dependency error. As a result, attempting to

install or upgrade the squirrelmail package failed on systems using the

php53 packages. With this update, the dependencies of the squirrelmail

package were changed and the installation or upgrade now works correctly in

the described scenario. (BZ#789353)

 

All users of SquirrelMail are advised to upgrade to this updated package,

which contains backported patches to correct these issues.

 

4. Solution:

 

Before applying this update, make sure all previously-released errata

relevant to your system have been applied.

 

This update is available via the Red Hat Network. Details on how to

use the Red Hat Network to apply this update are available at

https://access.redhat.com/knowledge/articles/11258

 

5. Bugs fixed (http://bugzilla.redhat.com/):

 

241861 - Bad decoding of multiple Subjects

450780 - Email messages with UIDs bigger than 2^31 are unreadable via SquirrelMail

475188 - PHP error: undefined variable charset in squirrelmail

508686 - Squirrelmail could not use GB2312 for incorrect charset at i18n.php

528758 - Fix misspelled constant PREG_SPLIT_NI_EMPTY in sqimap_get_message

669663 - Package squirrelmail fails to build in brew due to gettext update.

745380 - SELinux seems to block sending e-mails from the squirrelmail web interface

745469 - rfc2822 line length limits

789353 - squirrelmail should require mod_php not php

814671 - CVE-2012-2124 squirrelmail: CVE-2010-2813 not fixed in RHSA-2012:0103

 

6. Package List:

 

RHEL Desktop Workstation (v. 5 client):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/squirrelmail-1.4.8-21.el5.src.rpm

 

noarch:

squirrelmail-1.4.8-21.el5.noarch.rpm

 

Red Hat Enterprise Linux (v. 5 server):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/squirrelmail-1.4.8-21.el5.src.rpm

 

noarch:

squirrelmail-1.4.8-21.el5.noarch.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://access.redhat.com/security/team/key/#package

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2012-2124.html

https://access.redhat.com/security/updates/classification/#low

https://rhn.redhat.com/errata/RHSA-2012-0103.html

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2013 Red Hat, Inc.

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