RHSA-2015:1090: wpa_supplicant security and enhancement update

Description

The wpa_supplicant package contains an 802.1X Supplicant with support forWEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP authenticationmethods. It implements key negotiation with a WPA Authenticator for clientstations and controls the roaming and IEEE 802.11 authentication andassociation of the WLAN driver.A buffer overflow flaw was found in the way wpa_supplicant handled SSIDinformation in the Wi-Fi Direct / P2P management frames. A speciallycrafted frame could allow an attacker within Wi-Fi radio range to causewpa_supplicant to crash or, possibly, execute arbitrary code.(CVE-2015-1863)An integer underflow flaw, leading to a buffer over-read, was found in theway wpa_supplicant handled WMM Action frames. A specially crafted framecould possibly allow an attacker within Wi-Fi radio range to causewpa_supplicant to crash. (CVE-2015-4142)Red Hat would like to thank Jouni Malinen of the wpa_supplicant upstreamfor reporting the CVE-2015-1863 issue. Upstream acknowledges Alibabasecurity team as the original reporter.This update also adds the following enhancement:All wpa_supplicant users are advised to upgrade to this updated package,which contains backported patches to correct these issues and add thisenhancement. After installing this update, the wpa_supplicant service willbe restarted automatically.