The Mandriva Security Team published a new security update for Mandriva Linux. Here the announcement:

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Mandriva Linux Security Advisory MDKSA-2007:082
http://www.mandriva.com/security/
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Package : madwifi-source
Date : April 11, 2007
Affected: 2007.0, 2007.1
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Problem Description:

The ath_rate_sample function in the ath_rate/sample/sample.c sample
code in MadWifi before 0.9.3 allows remote attackers to cause a denial
of service (failed KASSERT and system crash) by moving a connected
system to a location with low signal strength, and possibly other
vectors related to a race condition between interface enabling and
packet transmission. (CVE-2005-4835)

MadWifi, when Ad-Hoc mode is used, allows remote attackers to cause
a denial of service (system crash) via unspecified vectors that lead
to a kernel panic in the ieee80211_input function, related to packets
coming from a malicious WinXP system. (CVE-2006-7177)

MadWifi before 0.9.3 does not properly handle reception of an AUTH
frame by an IBSS node, which allows remote attackers to cause a denial
of service (system crash) via a certain AUTH frame. (CVE-2006-7178)

ieee80211_input.c in MadWifi before 0.9.3 does not properly process
Channel Switch Announcement Information Elements (CSA IEs), which
allows remote attackers to cause a denial of service (loss of
communication) via a Channel Switch Count less than or equal to one,
triggering a channel change. (CVE-2006-7179)

ieee80211_output.c in MadWifi before 0.9.3 sends unencrypted packets
before WPA authentication succeeds, which allows remote attackers
to obtain sensitive information (related to network structure),
and possibly cause a denial of service (disrupted authentication)
and conduct spoofing attacks. (CVE-2006-7180)

Updated packages have been updated to 0.9.3 to correct this
issue. Wpa_supplicant is built using madwifi-source and has been
rebuilt using 0.9.3 source.
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References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4835
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7177
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7178
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7179
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7180
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Updated Packages:

Mandriva Linux 2007.0:
d7cbe028e271f0f8d774905558e74fdc 2007.0/i586/madwifi-source-0.9.3-1.1mdv2007.0.noarch.rpm
904a90761313b1cc56d6a0ff0d477ad7 2007.0/i586/wpa_gui-0.5.5-2.1mdv2007.0.i586.rpm
052bfcc81003cc8b6656434e4611a521 2007.0/i586/wpa_supplicant-0.5.5-2.1mdv2007.0.i586.rpm
aaec8f2686274bd944a2a0932180a91d 2007.0/SRPMS/madwifi-source-0.9.3-1.1mdv2007.0.src.rpm
8b9dad3443aab464e3f32bdf6e5e4ab6 2007.0/SRPMS/wpa_supplicant-0.5.5-2.1mdv2007.0.src.rpm

Mandriva Linux 2007.0/X86_64:
d7cbe028e271f0f8d774905558e74fdc 2007.0/x86_64/madwifi-source-0.9.3-1.1mdv2007.0.noarch.rpm
286aebce2515abdf2ce786d568ca561a 2007.0/x86_64/wpa_gui-0.5.5-2.1mdv2007.0.x86_64.rpm
b65aa19f1f3f3e54fe1417e01efa0618 2007.0/x86_64/wpa_supplicant-0.5.5-2.1mdv2007.0.x86_64.rpm
aaec8f2686274bd944a2a0932180a91d 2007.0/SRPMS/madwifi-source-0.9.3-1.1mdv2007.0.src.rpm
8b9dad3443aab464e3f32bdf6e5e4ab6 2007.0/SRPMS/wpa_supplicant-0.5.5-2.1mdv2007.0.src.rpm

Mandriva Linux 2007.1:
b1516928d8a7912697ed745a4c7d7e92 2007.1/i586/madwifi-source-0.9.3-1.1mdv2007.1.noarch.rpm
f8f1afbd019cee7198980cea27f51888 2007.1/i586/wpa_gui-0.5.7-1.1mdv2007.1.i586.rpm
1b6c006280fc9e489367a33277aedec2 2007.1/i586/wpa_supplicant-0.5.7-1.1mdv2007.1.i586.rpm
5cfe8a50972bc71713aeec6e3fd16477 2007.1/SRPMS/madwifi-source-0.9.3-1.1mdv2007.1.src.rpm
39d7ca78f1476cf4cc1e9424b839687d 2007.1/SRPMS/wpa_supplicant-0.5.7-1.1mdv2007.1.src.rpm

Mandriva Linux 2007.1/X86_64:
b1516928d8a7912697ed745a4c7d7e92 2007.1/x86_64/madwifi-source-0.9.3-1.1mdv2007.1.noarch.rpm
f2d503a7c9c75a2e7a893bf9ac21b67d 2007.1/x86_64/wpa_gui-0.5.7-1.1mdv2007.1.x86_64.rpm
cab5de7a034f25e3a1135ebb4baf540a 2007.1/x86_64/wpa_supplicant-0.5.7-1.1mdv2007.1.x86_64.rpm
5cfe8a50972bc71713aeec6e3fd16477 2007.1/SRPMS/madwifi-source-0.9.3-1.1mdv2007.1.src.rpm
39d7ca78f1476cf4cc1e9424b839687d 2007.1/SRPMS/wpa_supplicant-0.5.7-1.1mdv2007.1.src.rpm
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To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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