==========================================================================
Ubuntu Security Notice USN-2808-1
November 10, 2015
wpa vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 15.10
– Ubuntu 15.04
– Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in wpa_supplicant and hostapd.
Software Description:
– wpa: client support for WPA and WPA2
Details:
It was discovered that wpa_supplicant incorrectly handled WMM Sleep Mode
Response frame processing. A remote attacker could use this issue to
perform broadcast/multicast packet injections, or cause a denial of
service. (CVE-2015-5310)
It was discovered that wpa_supplicant and hostapd incorrectly handled
certain EAP-pwd messages. A remote attacker could use this issue to cause a
denial of service. (CVE-2015-5314, CVE-2015-5315)
It was discovered that wpa_supplicant incorrectly handled certain EAP-pwd
Confirm messages. A remote attacker could use this issue to cause a
denial of service. This issue only applied to Ubuntu 15.10. (CVE-2015-5316)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 15.10:
hostapd 2.4-0ubuntu3.2
wpasupplicant 2.4-0ubuntu3.2
Ubuntu 15.04:
hostapd 2.1-0ubuntu7.3
wpasupplicant 2.1-0ubuntu7.3
Ubuntu 14.04 LTS:
hostapd 2.1-0ubuntu1.4
wpasupplicant 2.1-0ubuntu1.4
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2808-1
CVE-2015-5310, CVE-2015-5314, CVE-2015-5315, CVE-2015-5316
Package Information:
https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu3.2
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu7.3
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu1.4
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