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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200610-05">
<title>CAPI4Hylafax fax receiver: Execution of arbitrary code</title>
<synopsis>
CAPI4Hylafax allows remote attackers to execute arbitrary commands.
</synopsis>
<product type="ebuild">capi4hylafax</product>
<announced>October 17, 2006</announced>
<revised>October 17, 2006: 01</revised>
<bug>145982</bug>
<access>remote</access>
<affected>
<package name="net-misc/capi4hylafax" auto="yes" arch="*">
<unaffected range="ge">01.03.00.99.300.3-r1</unaffected>
<vulnerable range="lt">01.03.00.99.300.3-r1</vulnerable>
</package>
</affected>
<background>
<p>
CAPI4Hylafax makes it possible to send and receive faxes via CAPI and
AVM Fritz!Cards.
</p>
</background>
<description>
<p>
Lionel Elie Mamane discovered an error in c2faxrecv, which doesn't
properly sanitize TSI strings when handling incoming calls.
</p>
</description>
<impact type="high">
<p>
A remote attacker can send null (\0) and shell metacharacters in the
TSI string from an anonymous fax number, leading to the execution of
arbitrary code with the rights of the user running c2faxrecv.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All CAPI4Hylafax users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/capi4hylafax-01.03.00.99.300.3-r1"</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3126">CVE-2006-3126</uri>
</references>
<metadata tag="requester" timestamp="Wed, 11 Oct 2006 11:18:55 +0000">
vorlon078
</metadata>
<metadata tag="submitter" timestamp="Fri, 13 Oct 2006 13:56:18 +0000">
falco
</metadata>
<metadata tag="bugReady" timestamp="Fri, 13 Oct 2006 13:57:08 +0000">
falco
</metadata>
</glsa>
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