[gentoo-announce] [ GLSA 201207-08 ] Gnash: Multiple vulnerabilities

[news 28]

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Gentoo Linux Security Advisory GLSA 201207-08

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http://security.gentoo.org/

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Severity: Normal

Title: Gnash: Multiple vulnerabilities

Date: July 09, 2012

Bugs: #391283, #408209

ID: 201207-08

 

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Synopsis

========

 

Multiple vulnerabilities have been found in Gnash which could result in

execution of arbitrary code, Denial of Service, or information

disclosure.

 

Background

==========

 

Gnash is a GNU flash movie player that supports many SWF features.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 www-plugins/gnash < 0.8.10-r2 >= 0.8.10-r2

 

Description

===========

 

Multiple vulnerabilities have been found in Gnash:

 

* The "nsPluginInstance::setupCookies()" function in plugin.cpp creates

world-readable cookies with predictable file names (CVE-2011-4328).

* The "GnashImage::size()" function in GnashImage.h contains an integer

overflow error which could cause a heap-based buffer overflow

(CVE-2012-1175).

 

Impact

======

 

A remote attacker could entice a user to open a specially crafted SWF

file, possibly resulting in execution of arbitrary code or a Denial of

Service condition. Furthermore, a local attacker may be able to obtain

sensitive information.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All Gnash users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=www-plugins/gnash-0.8.10-r2"

 

References

==========

 

[ 1 ] CVE-2011-4328

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4328

[ 2 ] CVE-2012-1175

http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1175

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-201207-08.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 ( -at -) gentoo.org or alternatively, you may file a bug at

https://bugs.gentoo.org.

 

License

=======

 

Copyright 2012 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