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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200711-09">
<title>MadWifi: Denial of Service</title>
<synopsis>
MadWifi does not correctly process beacon frames which can lead to a
remotely triggered Denial of Service.
</synopsis>
<product type="ebuild">madwifi-ng</product>
<announced>2007-11-07</announced>
<revised count="01">2007-11-07</revised>
<bug>195705</bug>
<access>remote</access>
<affected>
<package name="net-wireless/madwifi-ng" auto="yes" arch="*">
<unaffected range="ge">0.9.3.3</unaffected>
<vulnerable range="lt">0.9.3.3</vulnerable>
</package>
</affected>
<background>
<p>
The MadWifi driver provides support for Atheros based IEEE 802.11
Wireless Lan cards.
</p>
</background>
<description>
<p>
Clemens Kolbitsch and Sylvester Keil reported an error when processing
beacon frames with an overly large "length" value in the "xrates"
element.
</p>
</description>
<impact type="normal">
<p>
A remote attacker could act as an access point and send a specially
crafted packet to an Atheros based wireless client, possibly resulting
in a Denial of Service (kernel panic).
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All MadWifi users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-wireless/madwifi-ng-0.9.3.3"</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5448">CVE-2007-5448</uri>
</references>
<metadata tag="requester" timestamp="2007-11-02T23:16:45Z">
p-y
</metadata>
<metadata tag="submitter" timestamp="2007-11-03T23:18:04Z">
rbu
</metadata>
<metadata tag="bugReady" timestamp="2007-11-03T23:18:55Z">
rbu
</metadata>
</glsa>
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