USN-3455-1: wpa_supplicant and hostapd vulnerabilities
Ubuntu Security Notice USN-3455-1
16th October, 2017
wpa vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Several security issues were fixed in wpa_supplicant.
Software description
- wpa
– client support for WPA and WPA2
Details
Mathy Vanhoef discovered that wpa_supplicant and hostapd incorrectly
handled WPA2. A remote attacker could use this issue with key
reinstallation attacks to obtain sensitive information. (CVE-2017-13077,
CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081,
CVE-2017-13082, CVE-2017-13086, CVE-2017-13087, CVE-2017-13088)
Imre Rad discovered that wpa_supplicant and hostapd incorrectly handled
invalid characters in passphrase parameters. A remote attacker could use
this issue to cause a denial of service. (CVE-2016-4476)
Imre Rad discovered that wpa_supplicant and hostapd incorrectly handled
invalid characters in passphrase parameters. A local attacker could use
this issue to cause a denial of service, or possibly execute arbitrary
code. (CVE-2016-4477)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 17.04:
-
hostapd
2.4-0ubuntu9.1
-
wpasupplicant
2.4-0ubuntu9.1
- Ubuntu 16.04 LTS:
-
hostapd
2.4-0ubuntu6.2
-
wpasupplicant
2.4-0ubuntu6.2
- Ubuntu 14.04 LTS:
-
hostapd
2.1-0ubuntu1.5
-
wpasupplicant
2.1-0ubuntu1.5
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
Source: USN-3455-1: wpa_supplicant and hostapd vulnerabilities
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