RedHat: RHSA-2017-2911:01 Important: wpa_supplicant security update
Summary
The wpa_supplicant packages contain an 802.1X Supplicant with support for
WEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP authentication
methods. They implement key negotiation with a WPA Authenticator for client
stations and controls the roaming and IEEE 802.11 authentication and
association of the WLAN driver.
Security Fix(es):
* A new exploitation technique called key reinstallation attacks (KRACK)
affecting WPA2 has been discovered. A remote attacker within Wi-Fi range
could exploit these attacks to decrypt Wi-Fi traffic or possibly inject
forged Wi-Fi packets by manipulating cryptographic handshakes used by the
WPA2 protocol. (CVE-2017-13077, CVE-2017-13078, CVE-2017-13080,
CVE-2017-13087)
Red Hat would like to thank CERT for reporting these issues. Upstream
acknowledges Mathy Vanhoef (University of Leuven) as the original reporter
of these issues.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2017-13077 https://access.redhat.com/security/cve/CVE-2017-13078 https://access.redhat.com/security/cve/CVE-2017-13080 https://access.redhat.com/security/cve/CVE-2017-13087 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/kracks
Package List
Red Hat Enterprise Linux Desktop (v. 6):
Source:
wpa_supplicant-0.7.3-9.el6_9.2.src.rpm
i386:
wpa_supplicant-0.7.3-9.el6_9.2.i686.rpm
wpa_supplicant-debuginfo-0.7.3-9.el6_9.2.i686.rpm
x86_64:
wpa_supplicant-0.7.3-9.el6_9.2.x86_64.rpm
wpa_supplicant-debuginfo-0.7.3-9.el6_9.2.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
wpa_supplicant-0.7.3-9.el6_9.2.src.rpm
x86_64:
wpa_supplicant-0.7.3-9.el6_9.2.x86_64.rpm
wpa_supplicant-debuginfo-0.7.3-9.el6_9.2.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
wpa_supplicant-0.7.3-9.el6_9.2.src.rpm
i386:
wpa_supplicant-0.7.3-9.el6_9.2.i686.rpm
wpa_supplicant-debuginfo-0.7.3-9.el6_9.2.i686.rpm
ppc64:
wpa_supplicant-0.7.3-9.el6_9.2.ppc64.rpm
wpa_supplicant-debuginfo-0.7.3-9.el6_9.2.ppc64.rpm
s390x:
wpa_supplicant-0.7.3-9.el6_9.2.s390x.rpm
wpa_supplicant-debuginfo-0.7.3-9.el6_9.2.s390x.rpm
x86_64:
wpa_supplicant-0.7.3-9.el6_9.2.x86_64.rpm
wpa_supplicant-debuginfo-0.7.3-9.el6_9.2.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
wpa_supplicant-0.7.3-9.el6_9.2.src.rpm
i386:
wpa_supplicant-0.7.3-9.el6_9.2.i686.rpm
wpa_supplicant-debuginfo-0.7.3-9.el6_9.2.i686.rpm
x86_64:
wpa_supplicant-0.7.3-9.el6_9.2.x86_64.rpm
wpa_supplicant-debuginfo-0.7.3-9.el6_9.2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for wpa_supplicant is now available for Red Hat Enterprise Linux6.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Bugs Fixed
1491692 - CVE-2017-13077 wpa_supplicant: Reinstallation of the pairwise key in the 4-way handshake
1491693 - CVE-2017-13078 wpa_supplicant: Reinstallation of the group key in the 4-way handshake
1491696 - CVE-2017-13080 wpa_supplicant: Reinstallation of the group key in the group key handshake
1500303 - CVE-2017-13087 wpa_supplicant: reinstallation of the group key (GTK) when processing a Wireless Network Management (WNM) Sleep Mode Response frame
