[ GLSA 201001-03 ] PHP: Multiple vulnerabilities

[Tobias Heinlein <keytoaster () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 201001-03
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                                            http://security.gentoo.org/
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  Severity: High
     Title: PHP: Multiple vulnerabilities
      Date: January 05, 2010
      Bugs: #249875, #255121, #260576, #261192, #266125, #274670,
#280602, #285434, #292132, #293888, #297369, #297370
        ID: 201001-03

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Synopsis
========

Multiple vulnerabilities were found in PHP, the worst of which leading
to the remote execution of arbitrary code.

Background
==========

PHP is a widely-used general-purpose scripting language that is
especially suited for Web development and can be embedded into HTML.

Affected packages
=================

    -------------------------------------------------------------------
     Package       /  Vulnerable  /                         Unaffected
    -------------------------------------------------------------------
  1  dev-lang/php      < 5.2.12                              >= 5.2.12

Description
===========

Multiple vulnerabilities have been discovered in PHP. Please review the
CVE identifiers referenced below and the associated PHP release notes
for details.

Impact
======

A context-dependent attacker could execute arbitrary code via a
specially crafted string containing an HTML entity when the mbstring
extension is enabled. Furthermore a remote attacker could execute
arbitrary code via a specially crafted GD graphics file.

A remote attacker could also cause a Denial of Service via a malformed
string passed to the json_decode() function, via a specially crafted
ZIP file passed to the php_zip_make_relative_path() function, via a
malformed JPEG image passed to the exif_read_data() function, or via
temporary file exhaustion. It is also possible for an attacker to spoof
certificates, bypass various safe_mode and open_basedir restrictions
when certain criteria are met, perform Cross-site scripting attacks,
more easily perform SQL injection attacks, manipulate settings of other
virtual hosts on the same server via a malicious .htaccess entry when
running on Apache, disclose memory portions, and write arbitrary files
via a specially crafted ZIP archive. Some vulnerabilities with unknown
impact and attack vectors have been reported as well.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PHP users should upgrade to the latest version. As PHP is
statically linked against a vulnerable version of the c-client library
when the imap or kolab USE flag is enabled (GLSA 200911-03), users
should upgrade net-libs/c-client beforehand:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-libs/c-client-2007e"
    # emerge --ask --oneshot --verbose ">=dev-lang/php-5.2.12"

References
==========

  [ 1 ] CVE-2008-5498
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5498
  [ 2 ] CVE-2008-5514
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5514
  [ 3 ] CVE-2008-5557
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5557
  [ 4 ] CVE-2008-5624
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5624
  [ 5 ] CVE-2008-5625
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5625
  [ 6 ] CVE-2008-5658
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5658
  [ 7 ] CVE-2008-5814
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5814
  [ 8 ] CVE-2008-5844
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5844
  [ 9 ] CVE-2008-7002
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-7002
  [ 10 ] CVE-2009-0754
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0754
  [ 11 ] CVE-2009-1271
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1271
  [ 12 ] CVE-2009-1272
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1272
  [ 13 ] CVE-2009-2626
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2626
  [ 14 ] CVE-2009-2687
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2687
  [ 15 ] CVE-2009-3291
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3291
  [ 16 ] CVE-2009-3292
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3292
  [ 17 ] CVE-2009-3293
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3293
  [ 18 ] CVE-2009-3546
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3546
  [ 19 ] CVE-2009-3557
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3557
  [ 20 ] CVE-2009-3558
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3558
  [ 21 ] CVE-2009-4017
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4017
  [ 22 ] CVE-2009-4142
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4142
  [ 23 ] CVE-2009-4143
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4143
  [ 24 ] GLSA 200911-03
         http://www.gentoo.org/security/en/glsa/glsa-200911-03.xml

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-201001-03.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security () gentoo org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2010 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

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