Debian Security Advisory DSA-3999-1 firstname.lastname@example.org https://www.debian.org/security/ Yves-Alexis Perez October 16, 2017 https://www.debian.org/security/faq
Package : wpa CVE ID : 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
Mathy Vanhoef of the imec-DistriNet research group of KU Leuven discovered multiple vulnerabilities in the WPA protocol, used for authentication in wireless networks. Those vulnerabilities applies to both the access point (implemented in hostapd) and the station (implemented in wpa_supplicant).
An attacker exploiting the vulnerabilities could force the vulnerable system to reuse cryptographic session keys, enabling a range of cryptographic attacks against the ciphers used in WPA1 and WPA2.
More information can be found in the researchers's paper, Key Reinstallation Attacks: Forcing Nonce Reuse in WPA2.
CVE-2017-13077: reinstallation of the pairwise key in the Four-way handshake CVE-2017-13078: reinstallation of the group key in the Four-way handshake CVE-2017-13079: reinstallation of the integrity group key in the Four-way handshake CVE-2017-13080: reinstallation of the group key in the Group Key handshake CVE-2017-13081: reinstallation of the integrity group key in the Group Key handshake CVE-2017-13082: accepting a retransmitted Fast BSS Transition Reassociation Request and reinstalling the pairwise key while processing it CVE-2017-13086: reinstallation of the Tunneled Direct-Link Setup (TDLS) PeerKey (TPK) key in the TDLS handshake CVE-2017-13087: reinstallation of the group key (GTK) when processing a Wireless Network Management (WNM) Sleep Mode Response frame CVE-2017-13088: reinstallation of the integrity group key (IGTK) when processing a Wireless Network Management (WNM) Sleep Mode Response frame
For the oldstable distribution (jessie), these problems have been fixed in version 2.3-1+deb8u5.
For the stable distribution (stretch), these problems have been fixed in version 2:2.4-1+deb9u1.
For the testing distribution (buster), these problems have been fixed in version 2:2.4-1.1.
For the unstable distribution (sid), these problems have been fixed in version 2:2.4-1.1.
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/
Mailing list: email@example.com