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Fedora 27 wpa_supplicant Security Advisory Critical Key Attacks

Fix the for the Key Reinstallation Attacks in FT handshake (CVE-2017-13082) - Fix PTK rekeying to generate a new ANonce - Prevent reinstallation of an already in-use group key and extend protection of GTK/IGTK reinstallation of WNM-Sleep Mode cases (CVE-2017-13078,. --------------------------------------------------------------------------------Fedora Update Notification FEDORA-2017-f45e844a85 2017-10-17 00:11:41.919108 --------------------------------------------------------------------------------Name : wpa_supplicant Product : Fedora 27 Version : 2.6 Release : 11.fc27 URL : http://w1.fi/wpa_supplicant/ Summary : WPA/WPA2/IEEE 802.1X Supplicant Description : wpa_supplicant is a WPA Supplicant for Linux, BSD and Windows with support for WPA and WPA2 (IEEE 802.11i / RSN). Supplicant is the IEEE 802.1X/WPA component that is used in the client stations. It implements key negotiation with a WPA Authenticator and it controls the roaming and IEEE 802.11 authentication/association of the wlan driver. --------------------------------------------------------------------------------Update Information: Fix the for the Key Reinstallation Attacks ========================================== - hostapd: Avoid key reinstallation in FT handshake (CVE-2017-13082) - Fix PTK rekeying to generate a new ANonce -Prevent reinstallation of an already in-use group key and extend protection of GTK/IGTK reinstallation of WNM-Sleep Mode cases (CVE-2017-13078, CVE-2017-13079, CVE-2017-13080, CVE-2017-13081, CVE-2017-13087, CVE-2017-13088) - Prevent installation of an all-zero TK - TDLS: Reject TPK-TK reconfiguration - WNM: Ignore WNM-Sleep Mode Response without pending request -FT: Do not allow multiple Reassociation Response frames Upstream advisory: https://w1.fi/security/2017-1/wpa-packet-number-reuse-with-replayed-messages.txt Details and the paper:https://www.krackattacks.com/ --------------------------------------------------------------------------------References: [ 1 ] Bug #1500304 - CVE-2017-13088 wpa_supplicant: reinstallation of the integrity group key (IGTK) when processing a Wireless Network Management (WNM) Sleep Mode Response frame https://bugzilla.redhat.com/show_bug.cgi?id=1500304 [ 2 ] Bug #1500303 - CVE-2017-13087 wpa_supplicant: reinstallation of the group key (GTK) when processing a Wireless Network Management (WNM) Sleep Mode Response frame https://bugzilla.redhat.com/show_bug.cgi?id=1500303 [ 3 ] Bug #1491698 - CVE-2017-13082 wpa_supplicant: Accepting a retransmitted FT Reassociation Request and reinstalling the pairwise key while processing it https://bugzilla.redhat.com/show_bug.cgi?id=1491698 [ 4 ] Bug #1491697 - CVE-2017-13081 wpa_supplicant: Reinstallation of the integrity group key in the group key handshake https://bugzilla.redhat.com/show_bug.cgi?id=1491697 [ 5 ] Bug #1491696 - CVE-2017-13080 wpa_supplicant: Reinstallation of the group key in the group key handshake https://bugzilla.redhat.com/show_bug.cgi?id=1491696 [ 6 ] Bug #1491694 - CVE-2017-13079 wpa_supplicant: Reinstallation of the integrity group key in the 4-way handshake https://bugzilla.redhat.com/show_bug.cgi?id=1491694 [ 7 ] Bug #1491693 - CVE-2017-13078 wpa_supplicant: Reinstallation of the group key in the 4-way handshake https://bugzilla.redhat.com/show_bug.cgi?id=1491693 [ 8 ] Bug #1491692 - CVE-2017-13077 wpa_supplicant: Reinstallation of the pairwise key in the 4-way handshake https://bugzilla.redhat.com/show_bug.cgi?id=1491692 --------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade wpa_supplicant' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html All packagesare signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/security/ -------------------------------------------------------------------------------- _______________________________________________ package-announce mailing list -- This email address is being protected from spambots. You need JavaScript enabled to view it. To unsubscribe send an email to This email address is being protected from spambots. You need JavaScript enabled to view it. . Mitigating key reinstallation vulnerabilities in wpa_supplicant for Fedora 27 to bolster network defenses and safeguard connections.. WPA Supplicant, Key Attacks, Network Security, Fedora Updates. . Severity: Critical. LinuxSecurity.com Team

Oct 17, 2017 •Critical Fedora