[Fwd: RHN Errata Alert: Updated php packages fix security issues and bugs]

Thu Dec 23 23:53:42 UTC 2004

FYI: looks like RH is on the way to solving this.

On a related note, how "ethical" is it for us to grab their fixes and
apply them to FL releases?

-Jim P.

-------- Forwarded Message --------
From: Red Hat Network Alert <dev-null at rhn.redhat.com>
To: jpopovitch <jimpop at yahoo.com>
Subject: RHN Errata Alert: Updated php packages fix security issues and
bugs
Date: Thu, 23 Dec 2004 18:41:00 -0500
Red Hat Network has determined that the following advisory is applicable to
one or more of the systems you have registered:

Complete information about this errata can be found at the following location:
     https://rhn.redhat.com/network/errata/errata_details.pxt?eid=2592

Security Advisory - RHSA-2004:687-05
------------------------------------------------------------------------------
Summary:
Updated php packages fix security issues and bugs

Updated php packages that fix various security issues and bugs are now
available for Red Hat Enterprise Linux 3.

Description:
PHP is an HTML-embedded scripting language commonly used with the Apache
HTTP Web server.

Flaws including possible information disclosure, double free, and negative
reference index array underflow were found in the deserialization code of
PHP.  PHP applications may use the unserialize function on untrusted user
data, which could allow a remote attacker to gain access to memory or
potentially execute arbitrary code.  The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2004-1019 to
this issue.

A flaw in the exif extension of PHP was found which lead to a stack
overflow.  An attacker could create a carefully crafted image file in such
a way that if parsed by a PHP script using the exif extension it could
cause a crash or potentially execute arbitrary code.  The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2004-1065 to this issue.

An information disclosure bug was discovered in the parsing of "GPC"
variables in PHP (query strings or cookies, and POST form data).  If
particular scripts used the values of the GPC variables, portions of the
memory space of an httpd child process could be revealed to the client. 
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2004-0958 to this issue.

A file access bug was discovered in the parsing of "multipart/form-data"
forms, used by PHP scripts which allow file uploads.  In particular
configurations, some scripts could allow a malicious client to upload files
to an arbitrary directory where the "apache" user has write access.  The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-0959 to this issue.

Flaws were found in shmop_write, pack, and unpack PHP functions.  These
functions are not normally passed user supplied data, so would require a
malicious PHP script to be exploited.  The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2004-1018 to
this issue.

Various issues were discovered in the use of the "select" system call in
PHP, which could be triggered if PHP is used in an Apache configuration
where the number of open files (such as virtual host log files) exceeds the
default process limit of 1024.  Workarounds are now included for some of
these issues.

The "phpize" shell script included in PHP can be used to build third-party
extension modules.  A build issue was discovered in the "phpize" script on
some 64-bit platforms which prevented correct operation.

The "pcntl" extension module is now enabled in the command line PHP
interpreter, /usr/bin/php.  This module enables process control features 
such as "fork" and "kill" from PHP scripts.

Users of PHP should upgrade to these updated packages, which contain fixes
for these issues.
------------------------------------------------------------------------------

-------------
Taking Action
-------------
You may address the issues outlined in this advisory in two ways:

     - select your server name by clicking on its name from the list
       available at the following location, and then schedule an
       errata update for it:
           https://rhn.redhat.com/network/systemlist/system_list.pxt

     - run the Update Agent on each affected server.

---------------------------------
Changing Notification Preferences
---------------------------------
To enable/disable your Errata Alert preferences globally please log in to RHN
and navigate from "Your RHN" / "Your Account" to the "Preferences" tab.

        URL: https://rhn.redhat.com/network/my_account/my_prefs.pxt

You can also enable/disable notification on a per system basis by selecting an
individual system from the "Systems List". From the individual system view
click the "Details" tab.

---------------------
Affected Systems List
---------------------
This Errata Advisory may apply to the systems listed below. If you know that
this errata does not apply to a system listed, it might be possible that the
package profile for that server is out of date. In that case you should run
'up2date -p' as root on the system in question to refresh your software profile.

There is 1 affected system registered in 'Your RHN' (only systems for
which you have explicitly enabled Errata Alerts are shown).

Release   Arch       Profile Name
--------  --------   ------------
3WS       i686       rhel3                                   

The Red Hat Network Team

This message is being sent by Red Hat Network Alert to:
    RHN user login:        jpopovitch
    Email address on file: <jimpop at yahoo.com>

If you lost your RHN password, you can use the information above to
retrieve it by email from the following address:
    https://rhn.redhat.com/forgot_password.pxt

To cancel these notices, go to:
    https://rhn.redhat.com/oo.pxt?uid=2434124&oid=2991226