USN-2808-1: wpa_supplicant and hostapd vulnerabilities

Releases

• Ubuntu 15.10
• Ubuntu 15.04
• Ubuntu 14.04 ESM

Packages

• 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

• hostapd - 1:2.1-0ubuntu1.4
• wpasupplicant - 2.1-0ubuntu1.4

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

References

• CVE-2015-5310
• CVE-2015-5314
• CVE-2015-5315
• CVE-2015-5316