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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201101-02">
<title>Tor: Remote heap-based buffer overflow</title>
<synopsis>
Tor is vulnerable to a heap-based buffer overflow that may allow arbitrary
code execution.
</synopsis>
<product type="ebuild">Tor</product>
<announced>January 15, 2011</announced>
<revised>January 15, 2011: 01</revised>
<bug>349312</bug>
<access>remote</access>
<affected>
<package name="net-misc/tor" auto="yes" arch="*">
<unaffected range="ge">0.2.1.28</unaffected>
<vulnerable range="lt">0.2.1.28</vulnerable>
</package>
</affected>
<background>
<p>
Tor is an implementation of second generation Onion Routing, a
connection-oriented anonymizing communication service.
</p>
</background>
<description>
<p>
Tor contains a heap-based buffer overflow in the processing of user or
attacker supplied data. No additional information is available.
</p>
</description>
<impact type="high">
<p>
Successful exploitation of this vulnerability may allow an
unauthenticated remote attacker to execute arbitrary code with the
permissions of the Tor user, or to cause a Denial of Service.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Tor users should upgrade to the latest stable version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-misc/tor-0.2.1.28&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-1676">CVE-2010-1676</uri>
</references>
<metadata tag="requester" timestamp="Fri, 07 Jan 2011 23:48:00 +0000">
underling
</metadata>
<metadata tag="submitter" timestamp="Sat, 08 Jan 2011 05:24:30 +0000">
underling
</metadata>
<metadata tag="bugReady" timestamp="Sat, 08 Jan 2011 05:24:40 +0000">
underling
</metadata>
</glsa>