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70 lines
2.5 KiB
70 lines
2.5 KiB
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200704-15">
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<title>MadWifi: Multiple vulnerabilities</title>
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<synopsis>
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Multiple vulnerabilities have been discovered in the MadWifi driver,
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possibly leading to a Denial of Service and information disclosure.
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</synopsis>
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<product type="ebuild">Madwifi-ng</product>
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<announced>2007-04-17</announced>
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<revised count="02">2007-04-21</revised>
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<bug>173434</bug>
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<access>remote</access>
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<affected>
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<package name="net-wireless/madwifi-ng" auto="yes" arch="*">
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<unaffected range="ge">0.9.3</unaffected>
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<vulnerable range="lt">0.9.3</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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The MadWifi driver provides support for Atheros based IEEE 802.11
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Wireless Lan cards.
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</p>
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</background>
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<description>
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<p>
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The driver does not properly process Channel Switch Announcement
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Information Elements, allowing for an abnormal channel change. The
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ieee80211_input() function does not properly handle AUTH frames and the
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driver sends unencrypted packets before WPA authentication succeeds.
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</p>
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</description>
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<impact type="normal">
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<p>
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A remote attacker could send specially crafted AUTH frames to the
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vulnerable host, resulting in a Denial of Service by crashing the
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kernel. A remote attacker could gain access to sensitive information
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about network architecture by sniffing unencrypted packets. A remote
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attacker could also send a Channel Switch Count less than or equal to
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one to trigger a channel change, resulting in a communication loss and
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a Denial of Service.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All MadWifi users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-wireless/madwifi-ng-0.9.3"</code>
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</resolution>
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<references>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7178">CVE-2006-7178</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7179">CVE-2006-7179</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7180">CVE-2006-7180</uri>
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</references>
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<metadata tag="submitter" timestamp="2007-04-11T12:32:14Z">
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p-y
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</metadata>
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<metadata tag="bugReady" timestamp="2007-04-11T18:16:05Z">
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p-y
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</metadata>
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</glsa>
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