A new security update has been released for Gentoo Linux - Adobe Reader: User-assisted execution of arbitrary code. Here the announcement:

Gentoo Linux Security Advisory GLSA 200907-06
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http://security.gentoo.org/
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Severity: Normal
Title: Adobe Reader: User-assisted execution of arbitrary code
Date: July 12, 2009
Bugs: #267846, #273908
ID: 200907-06

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Synopsis
========

Adobe Reader is vulnerable to remote code execution via crafted PDF
files.

Background
==========

Adobe Reader is a PDF reader released by Adobe.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-text/acroread < 8.1.6 >= 8.1.6

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

Multiple vulnerabilities have been reported in Adobe Reader:

* Alin Rad Pop of Secunia Research reported a heap-based buffer
overflow in the JBIG2 filter (CVE-2009-0198).

* Mark Dowd of the IBM Internet Security Systems X-Force and Nicolas
Joly of VUPEN Security reported multiple heap-based buffer overflows
in the JBIG2 filter (CVE-2009-0509, CVE-2009-0510, CVE-2009-0511,
CVE-2009-0512, CVE-2009-0888, CVE-2009-0889)

* Arr1val reported that multiple methods in the JavaScript API might
lead to memory corruption when called with crafted arguments
(CVE-2009-1492, CVE-2009-1493).

* An anonymous researcher reported a stack-based buffer overflow
related to U3D model files with a crafted extension block
(CVE-2009-1855).

* Jun Mao and Ryan Smith of iDefense Labs reported an integer
overflow related to the FlateDecode filter, which triggers a
heap-based buffer overflow (CVE-2009-1856).

* Haifei Li of Fortinet's FortiGuard Global Security Research Team
reported a memory corruption vulnerability related to TrueType fonts
(CVE-2009-1857).

* The Apple Product Security Team reported a memory corruption
vulnerability in the JBIG2 filter (CVE-2009-1858).

* Matthew Watchinski of Sourcefire VRT reported an unspecified memory
corruption (CVE-2009-1859).

* Will Dormann of CERT reported multiple heap-based buffer overflows
when processing JPX (aka JPEG2000) stream that trigger heap memory
corruption (CVE-2009-1861).

* Multiple unspecified vulnerabilities have been discovered
(CVE-2009-2028).

Impact
======

A remote attacker could entice a user to open a specially crafted
document, possibly resulting in the execution of arbitrary code with
the privileges of the user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Adobe Reader users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/acroread-8.1.6"

References
==========

[ 1 ] CVE-2009-0198
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0198
[ 2 ] CVE-2009-0509
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0509
[ 3 ] CVE-2009-0510
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0510
[ 4 ] CVE-2009-0511
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0511
[ 5 ] CVE-2009-0512
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0512
[ 6 ] CVE-2009-0888
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0888
[ 7 ] CVE-2009-0889
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0889
[ 8 ] CVE-2009-1492
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1492
[ 9 ] CVE-2009-1493
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1493
[ 10 ] CVE-2009-1855
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1855
[ 11 ] CVE-2009-1856
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1856
[ 12 ] CVE-2009-1857
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1857
[ 13 ] CVE-2009-1858
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1858
[ 14 ] CVE-2009-1859
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1859
[ 15 ] CVE-2009-1861
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1861
[ 16 ] CVE-2009-2028
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2028

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

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

http://security.gentoo.org/glsa/glsa-200907-06.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 2009 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