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.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)This update includes the following enhancement:All wpa_supplicant users are advised to upgrade to this updated package,which contains a backported patch to correct this issue and adds thisenhancement. After installing this update, the wpa_supplicant service willbe restarted automatically.