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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200606-01">
<title>Opera: Buffer overflow</title>
<synopsis>
Opera contains an integer signedness error resulting in a buffer overflow
which may allow a remote attacker to execute arbitrary code.
</synopsis>
<product type="ebuild">opera</product>
<announced>2006-06-07</announced>
<revised count="01">2006-06-07</revised>
<bug>129800</bug>
<access>remote</access>
<affected>
<package name="www-client/opera" auto="yes" arch="*">
<unaffected range="ge">8.54</unaffected>
<vulnerable range="lt">8.54</vulnerable>
</package>
</affected>
<background>
<p>
Opera is a multi-platform web browser.
</p>
</background>
<description>
<p>
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.
</p>
</description>
<impact type="normal">
<p>
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.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Opera users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=www-client/opera-8.54"</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1834">CVE-2006-1834</uri>
</references>
<metadata tag="submitter" timestamp="2006-05-30T13:12:35Z">
falco
</metadata>
<metadata tag="bugReady" timestamp="2006-05-31T19:39:23Z">
DerCorny
</metadata>
</glsa>