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Gentoo Linux Security Advisory GLSA 200407-15
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http://security.gentoo.org/
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Severity: Normal
Title: Opera: Multiple spoofing vulnerabilities
Date: July 20, 2004
Bugs: #56311, #56109
ID: 200407-15
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Synopsis
========
Opera contains three vulnerabilities, allowing an attacker to
impersonate legitimate websites with URI obfuscation or to spoof
websites with frame injection.
Background
==========
Opera is a multi-platform web browser.
Affected packages
=================
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Package / Vulnerable / Unaffected
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1 net-www/opera <= 7.52 >= 7.53
Description
===========
Opera fails to remove illegal characters from an URI of a link and to
check that the target frame of a link belongs to the same website as
the link. Opera also updates the address bar before loading a page.
Additionally, Opera contains a certificate verification problem.
Impact
======
These vulnerabilities could allow an attacker to impersonate legitimate
websites to steal sensitive information from users. This could be done
by obfuscating the real URI of a link or by injecting a malicious frame
into an arbitrary frame of another browser window.
Workaround
==========
There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version.
Resolution
==========
All Opera users should upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=net-www/opera-7.53"
# emerge ">=net-www/opera-7.53"
References
==========
[ 1 ] Bugtraq Announcement
http://www.securityfocus.com/bid/10517
[ 2 ] Secunia Advisory SA11978
http://secunia.com/advisories/11978/
[ 3 ] Secunia Advisory SA12028
http://secunia.com/advisories/12028/
[ 4 ] Opera Changelog
http://www.opera.com/linux/changelogs/753/
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200407-15.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 2004 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/1.0
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