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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201711-03">
<title>hostapd and wpa_supplicant: Key Reinstallation (KRACK) attacks</title>
<synopsis>A flaw was discovered in the 4-way handshake in hostapd and
wpa_supplicant that allows attackers to conduct a Man in the Middle attack.
</synopsis>
<product type="ebuild">hostapd,wpa_supplicant</product>
<announced>2017-11-10</announced>
<revised>2017-11-10: 1</revised>
<bug>634436</bug>
<bug>634438</bug>
<access>local, remote</access>
<affected>
<package name="net-wireless/hostapd" auto="yes" arch="*">
<unaffected range="ge">2.6-r1</unaffected>
<vulnerable range="lt">2.6-r1</vulnerable>
</package>
<package name="net-wireless/wpa_supplicant" auto="yes" arch="*">
<unaffected range="ge">2.6-r3</unaffected>
<vulnerable range="lt">2.6-r3</vulnerable>
</package>
</affected>
<background>
<p>wpa_supplicant is a WPA Supplicant with support for WPA and WPA2 (IEEE
802.11i / RSN). hostapd is a user space daemon for access point and
authentication servers.
</p>
</background>
<description>
<p>WiFi Protected Access (WPA and WPA2) and it’s associated technologies
are all vulnerable to the KRACK attacks. Please review the referenced CVE
identifiers for details.
</p>
</description>
<impact type="normal">
<p>An attacker can carry out the KRACK attacks on a wireless network in
order to gain access to network clients. Once achieved, the attacker can
potentially harvest confidential information (e.g. HTTP/HTTPS), inject
malware, or perform a myriad of other attacks.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All hostapd users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-wireless/hostapd-2.6-r1"
</code>
<p>All wpa_supplicant users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose
">=net-wireless/wpa_supplicant-2.6-r3"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13077">
CVE-2017-13077
</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13078">
CVE-2017-13078
</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13079">
CVE-2017-13079
</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13080">
CVE-2017-13080
</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13081">
CVE-2017-13081
</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13082">
CVE-2017-13082
</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13084">
CVE-2017-13084
</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13086">
CVE-2017-13086
</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13087">
CVE-2017-13087
</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-13088">
CVE-2017-13088
</uri>
<uri link="https://www.krackattacks.com/">KRACK Attacks Website</uri>
</references>
<metadata tag="requester" timestamp="2017-10-26T21:01:58Z">whissi</metadata>
<metadata tag="submitter" timestamp="2017-11-10T22:39:05Z">b-man</metadata>
</glsa>
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