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redhatRedHatRHSA-2013:0126
HistoryJan 08, 2013 - 12:00 a.m.

(RHSA-2013:0126) Low: squirrelmail security and bug fix update

2013-01-0800:00:00
access.redhat.com
9

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.115 Low

EPSS

Percentile

94.7%

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.

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.115 Low

EPSS

Percentile

94.7%