Gentoo: Adobe Flash Player Multiple vulnerabilities
Posted by Benjamin D. Thomas   
Gentoo Multiple vulnerabilities have been identified, the worst of which allow arbitrary code execution on a user's system via a malicious Flash file.
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Gentoo Linux Security Advisory                           GLSA 200804-21
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Adobe Flash Player: Multiple vulnerabilities
      Date: April 18, 2008
      Bugs: #204344
        ID: 200804-21

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Synopsis
========

Multiple vulnerabilities have been identified, the worst of which allow
arbitrary code execution on a user's system via a malicious Flash file.

Background
==========

The Adobe Flash Player is a renderer for the popular SWF file format,
which is commonly used to provide interactive websites, digital
experiences and mobile content.

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

    -------------------------------------------------------------------
     Package                 /   Vulnerable   /             Unaffected
    -------------------------------------------------------------------
  1  net-www/netscape-flash      < 9.0.124.0              >= 9.0.124.0

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

Multiple vulnerabilities have been discovered in Adobe Flash:

* Secunia Research and Zero Day Initiative reported a boundary error
  related to DeclareFunction2 Actionscript tags in SWF files
  (CVE-2007-6019).

* The ISS X-Force and the Zero Day Initiative reported an unspecified
  input validation error that might lead to a buffer overflow
  (CVE-2007-0071).

* Microsoft, UBsecure and JPCERT/CC reported that cross-domain policy
  files are not checked before sending HTTP headers to another domain
  (CVE-2008-1654) and that it does not sufficiently restrict the
  interpretation and usage of cross-domain policy files
  (CVE-2007-6243).

* The Stanford University and Ernst and Young's Advanced Security
  Center reported that Flash does not pin DNS hostnames to a single IP
  addresses, allowing for DNS rebinding attacks (CVE-2007-5275,
  CVE-2008-1655).

* The Google Security Team and Minded Security Multiple reported
  multiple cross-site scripting vulnerabilities when passing input to
  Flash functions (CVE-2007-6637).

Impact
======

A remote attacker could entice a user to open a specially crafted file
(usually in a web browser), possibly leading to the execution of
arbitrary code with the privileges of the user running the Adobe Flash
Player. The attacker could also cause a user's machine to send HTTP
requests to other hosts, establish TCP sessions with arbitrary hosts,
bypass the security sandbox model, or conduct Cross-Site Scripting and
Cross-Site Request Forgery attacks.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Adobe Flash Player users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot -v ">=net-www/netscape-flash-9.0.124.0"

References
==========

  [ 1 ] CVE-2007-0071
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0071
  [ 2 ] CVE-2007-5275
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5275
  [ 3 ] CVE-2007-6019
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6019
  [ 4 ] CVE-2007-6243
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6243
  [ 5 ] CVE-2007-6637
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6637
  [ 6 ] CVE-2008-1654
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1654
  [ 7 ] CVE-2008-1655
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1655

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

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

  http://security.gentoo.org/glsa/glsa-200804-21.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
http://bugs.gentoo.org.

License
=======

Copyright 2008 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