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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200711-13">
<title>3proxy: Denial of Service</title>
<synopsis>
A vulnerability has been discovered in 3proxy, possibly resulting in a
Denial of Service.
</synopsis>
<product type="ebuild">3proxy</product>
<announced>November 08, 2007</announced>
<revised>November 08, 2007: 01</revised>
<bug>196772</bug>
<access>remote</access>
<affected>
<package name="net-proxy/3proxy" auto="yes" arch="*">
<unaffected range="ge">0.5.3j</unaffected>
<vulnerable range="lt">0.5.3j</vulnerable>
</package>
</affected>
<background>
<p>
3proxy is a really tiny cross-platform proxy servers set, including
HTTP, HTTPS, FTP, SOCKS and POP3 support.
</p>
</background>
<description>
<p>
3proxy contains a double free vulnerability in the ftpprchild()
function, which frees param->hostname and calls the parsehostname()
function, which in turn attempts to free param->hostname again.
</p>
</description>
<impact type="normal">
<p>
A remote attacker could send a specially crafted request to the proxy,
possibly resulting in a Denial of Service. Under typical configuration,
the scope of this vulnerability is limited to the local network.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All 3proxy users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-proxy/3proxy-0.5.3j"</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5622">CVE-2007-5622</uri>
</references>
<metadata tag="requester" timestamp="Fri, 02 Nov 2007 23:15:07 +0000">
p-y
</metadata>
<metadata tag="submitter" timestamp="Sat, 03 Nov 2007 12:02:00 +0000">
keytoaster
</metadata>
<metadata tag="bugReady" timestamp="Sun, 04 Nov 2007 14:26:02 +0000">
rbu
</metadata>
</glsa>
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