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gentoo-overlay/metadata/glsa/glsa-200709-16.xml

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<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200709-16">
<title>Lighttpd: Buffer overflow</title>
<synopsis>
Lighttpd is vulnerable to the remote execution of arbitrary code.
</synopsis>
<product type="ebuild">lighttpd</product>
<announced>September 27, 2007</announced>
<revised>September 27, 2007: 01</revised>
<bug>191912</bug>
<access>remote</access>
<affected>
<package name="www-servers/lighttpd" auto="yes" arch="*">
<unaffected range="ge">1.4.18</unaffected>
<vulnerable range="lt">1.4.18</vulnerable>
</package>
</affected>
<background>
<p>
Lighttpd is a lightweight HTTP web server.
</p>
</background>
<description>
<p>
Mattias Bengtsson and Philip Olausson have discovered a buffer overflow
vulnerability in the function fcgi_env_add() in the file mod_fastcgi.c
when processing overly long HTTP headers.
</p>
</description>
<impact type="high">
<p>
A remote attacker could send a specially crafted request to the
vulnerable Lighttpd server, resulting in the remote execution of
arbitrary code with privileges of the user running the web server. Note
that mod_fastcgi is disabled in Gentoo's default configuration.
</p>
</impact>
<workaround>
<p>
Edit the file /etc/lighttpd/lighttpd.conf and comment the following
line: "include mod_fastcgi.conf"
</p>
</workaround>
<resolution>
<p>
All Lighttpd users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=www-servers/lighttpd-1.4.18&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4727">CVE-2007-4727</uri>
</references>
<metadata tag="requester" timestamp="Thu, 20 Sep 2007 21:10:23 +0000">
p-y
</metadata>
<metadata tag="bugReady" timestamp="Thu, 20 Sep 2007 21:10:32 +0000">
p-y
</metadata>
<metadata tag="submitter" timestamp="Sat, 22 Sep 2007 16:06:46 +0000">
p-y
</metadata>
</glsa>