USN-2808-1: wpa_supplicant and hostapd vulnerabilities

Ubuntu Security Notice USN-2808-1

10th November, 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 version:

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

To update your system, please follow these instructions: http://ift.tt/17VXqjU.

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

CVE-2015-5310, CVE-2015-5314, CVE-2015-5315, CVE-2015-5316

from Ubuntu Security Notices http://ift.tt/1NpwJo4