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gentoo-overlay/metadata/glsa/glsa-200511-09.xml

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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200511-09">
<title>Lynx: Arbitrary command execution</title>
<synopsis>
Lynx is vulnerable to an issue which allows the remote execution of
arbitrary commands.
</synopsis>
<product type="ebuild">lynx</product>
<announced>November 13, 2005</announced>
<revised>November 13, 2005: 01</revised>
<bug>112213</bug>
<access>remote</access>
<affected>
<package name="www-client/lynx" auto="yes" arch="*">
<unaffected range="ge">2.8.5-r2</unaffected>
<vulnerable range="lt">2.8.5-r2</vulnerable>
</package>
</affected>
<background>
<p>
Lynx is a fully-featured WWW client for users running
cursor-addressable, character-cell display devices such as vt100
terminals and terminal emulators.
</p>
</background>
<description>
<p>
iDefense labs discovered a problem within the feature to execute
local cgi-bin programs via the "lynxcgi:" URI handler. Due to a
configuration error, the default settings allow websites to specify
commands to run as the user running Lynx.
</p>
</description>
<impact type="normal">
<p>
A remote attacker can entice a user to access a malicious HTTP
server, causing Lynx to execute arbitrary commands.
</p>
</impact>
<workaround>
<p>
Disable "lynxcgi" links by specifying the following directive in
lynx.cfg:
</p>
<code>
TRUSTED_LYNXCGI:none</code>
</workaround>
<resolution>
<p>
All Lynx users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=www-client/lynx-2.8.5-r2&quot;</code>
</resolution>
<references>
<uri link="http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2929">CVE-2005-2929</uri>
<uri link="http://www.idefense.com/application/poi/display?id=338&amp;type=vulnerabilities">iDefense Security Advisory 11.11.05</uri>
</references>
<metadata tag="requester" timestamp="Fri, 11 Nov 2005 20:17:54 +0000">
taviso
</metadata>
<metadata tag="submitter" timestamp="Fri, 11 Nov 2005 21:30:52 +0000">
adir
</metadata>
<metadata tag="bugReady" timestamp="Sun, 13 Nov 2005 17:03:02 +0000">
koon
</metadata>
</glsa>