Several vulnerabilities have been discovered in wpa_supplicant and hostapd. The Common Vulnerabilities and Exposures project identifies the following problems:
CVE-2015-4141
Kostya Kortchinsky of the Google Security Team discovered a vulnerability in the WPS UPnP function with HTTP chunked transfer encoding which may result in a denial of service.
CVE-2015-4142
Kostya Kortchinsky of the Google Security Team discovered a vulnerability in the WMM Action frame processing which may result in a denial of service.
Kostya Kortchinsky of the Google Security Team discovered that EAP-pwd payload is not properly validated which may result in a denial of service.
CVE-2015-5310
Jouni Malinen discovered a flaw in the WMM Sleep Mode Response frame processing. A remote attacker can take advantage of this flaw to mount a denial of service.
CVE-2015-5314 CVE-2015-5315
Jouni Malinen discovered a flaw in the handling of EAP-pwd messages which may result in a denial of service.
CVE-2015-5316
Jouni Malinen discovered a flaw in the handling of EAP-pwd Confirm messages which may result in a denial of service.
CVE-2015-8041
Incomplete WPS and P2P NFC NDEF record payload length validation may result in a denial of service.
For the oldstable distribution (wheezy), these problems have been fixed in version 1.0-3+deb7u3. The oldstable distribution (wheezy) is only affected by CVE-2015-4141, CVE-2015-4142, CVE-2015-4143 and CVE-2015-8041.
For the stable distribution (jessie), these problems have been fixed in version 2.3-1+deb8u3.
We recommend that you upgrade your wpa packages.
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/