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gentoo-overlay/metadata/glsa/glsa-200504-11.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="200504-11">
<title>JunkBuster: Multiple vulnerabilities</title>
<synopsis>
JunkBuster is vulnerable to a heap corruption vulnerability, and under
certain configurations may allow an attacker to modify settings.
</synopsis>
<product type="ebuild">junkbuster</product>
<announced>April 13, 2005</announced>
<revised>April 21, 2005: 02</revised>
<bug>88537</bug>
<access>remote</access>
<affected>
<package name="net-proxy/junkbuster" auto="yes" arch="*">
<unaffected range="ge">2.0.2-r3</unaffected>
<vulnerable range="lt">2.0.2-r3</vulnerable>
</package>
</affected>
<background>
<p>
JunkBuster is a filtering HTTP proxy, designed to enhance privacy and
remove unwanted content.
</p>
</background>
<description>
<p>
James Ranson reported a vulnerability when JunkBuster is configured to
run in single-threaded mode, an attacker can modify the referrer
setting by getting a victim to request a specially crafted URL
(CAN-2005-1108). Tavis Ormandy of the Gentoo Linux Security Audit Team
identified a heap corruption issue in the filtering of URLs
(CAN-2005-1109).
</p>
</description>
<impact type="high">
<p>
If JunkBuster has been configured to run in single-threaded mode, an
attacker can disable or modify the filtering of Referrer: HTTP headers,
potentially compromising the privacy of users. The heap corruption
vulnerability could crash or disrupt the operation of the proxy,
potentially executing arbitrary code.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All JunkBuster users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-proxy/junkbuster-2.0.2-r3&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1108">CAN-2005-1108</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1109">CAN-2005-1109</uri>
</references>
<metadata tag="requester" timestamp="Tue, 12 Apr 2005 20:24:12 +0000">
jaervosz
</metadata>
<metadata tag="submitter" timestamp="Tue, 12 Apr 2005 21:28:36 +0000">
taviso
</metadata>
<metadata tag="bugReady" timestamp="Wed, 13 Apr 2005 08:43:25 +0000">
koon
</metadata>
</glsa>