| <?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>November 07, 2007</announced> |
| <revised>November 07, 2007: 01</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="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5448">CVE-2007-5448</uri> |
| </references> |
| <metadata tag="requester" timestamp="Fri, 02 Nov 2007 23:16:45 +0000"> |
| p-y |
| </metadata> |
| <metadata tag="submitter" timestamp="Sat, 03 Nov 2007 23:18:04 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sat, 03 Nov 2007 23:18:55 +0000"> |
| rbu |
| </metadata> |
| </glsa> |