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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200503-31">
<title>Mozilla Firefox: Multiple vulnerabilities</title>
Mozilla Firefox 1.0.2 fixes new security vulnerabilities, including the
remote execution of arbitrary code through malicious GIF images or
<product type="ebuild">Firefox</product>
<announced>March 25, 2005</announced>
<revised>March 25, 2005: 01</revised>
<package name="www-client/mozilla-firefox" auto="yes" arch="*">
<unaffected range="ge">1.0.2</unaffected>
<vulnerable range="lt">1.0.2</vulnerable>
<package name="www-client/mozilla-firefox-bin" auto="yes" arch="*">
<unaffected range="ge">1.0.2</unaffected>
<vulnerable range="lt">1.0.2</vulnerable>
Mozilla Firefox is the popular next-generation browser from the
Mozilla project.
The following vulnerabilities were found and fixed in Mozilla
<li>Mark Dowd from ISS X-Force reported an
exploitable heap overrun in the GIF processing of obsolete Netscape
extension 2 (CAN-2005-0399)</li>
<li>Kohei Yoshino discovered that a
page bookmarked as a sidebar could bypass privileges control
<li>Michael Krax reported a new way to bypass XUL
security restrictions through drag-and-drop of items like scrollbars
<impact type="normal">
<li>The GIF heap overflow could be triggered by a malicious GIF
image that would end up executing arbitrary code with the rights of the
user running Firefox</li>
<li>By tricking the user into bookmarking a
malicious page as a Sidebar, a remote attacker could potentially
execute arbitrary code with the rights of the user running the
<li>By setting up a malicious website and convincing users
to obey very specific drag-and-drop instructions, attackers may
leverage drag-and-drop features to bypass XUL security restrictions,
which could be used as a stepping stone to exploit other
There is no known workaround at this time.
All Mozilla Firefox users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=www-client/mozilla-firefox-1.0.2&quot;</code>
All Mozilla Firefox binary users should upgrade to the latest
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=www-client/mozilla-firefox-bin-1.0.2&quot;</code>
<uri link="">CAN-2005-0399</uri>
<uri link="">CAN-2005-0401</uri>
<uri link="">CAN-2005-0402</uri>
<uri link="">Mozilla Security Advisories</uri>
<metadata tag="submitter" timestamp="Tue, 22 Mar 2005 09:29:52 +0000">
<metadata tag="bugReady" timestamp="Fri, 25 Mar 2005 12:27:17 +0000">