Canonical has published details about WPA and WPA2 vulnerability in Ubuntu and has released updates to fix these issues.
Kostya Kortchinsky discovered multiple flaws in wpa_supplicant and hostapd. According to the security notice from Canonical “A remote attacker could use these issues to cause wpa_supplicant or hostapd to crash, resulting in a denial of service. (CVE-2015-4141, CVE-2015-4142, CVE-2015-4143, CVE-2015-4144, CVE-2015-4145, CVE-2015-4146).”
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