From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: [email protected]Subject: [ GLSA 200606-01 ] Opera: Buffer overflow
Date: Wed, 7 Jun 2006 07:20:47 +0200
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Organization: Gentoo Linux Security Team
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Gentoo Linux Security Advisory GLSA 200606-01
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http://security.gentoo.org/
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Severity: Normal
Title: Opera: Buffer overflow
Date: June 07, 2006
Bugs: #129800
ID: 200606-01
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Synopsis
========
Opera contains an integer signedness error resulting in a buffer
overflow which may allow a remote attacker to execute arbitrary code.
Background
==========
Opera is a multi-platform web browser.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-client/opera < 8.54 >= 8.54
Description
===========
SEC Consult has discovered a buffer overflow in the code processing
style sheet attributes. It is caused by an integer signedness error in
a length check followed by a call to a string function. It seems to be
hard to exploit this buffer overflow to execute arbitrary code because
of the very large amount memory that has to be copied.
Impact
======
A remote attacker can entice a user to visit a web page containing a
specially crafted style sheet attribute that will crash the user's
browser and maybe lead to the execution of arbitrary code.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Opera users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/opera-8.54"
References
==========
[ 1 ] CVE-2006-1834
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1834
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200606-01.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
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2006 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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