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Red Hat Security Advisory

Synopsis: Moderate: wpa_supplicant security update
Advisory ID: RHSA-2014:1956-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-1956.html
Issue date: 2014-12-03
CVE Names: CVE-2014-3686
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1. Summary:

An updated wpa_supplicant package that fixes one security issue is now
available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) – x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) – x86_64
Red Hat Enterprise Linux Server (v. 7) – ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) – x86_64

3. Description:

The wpa_supplicant package contains an 802.1X Supplicant with support for
WEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP authentication
methods. It implements key negotiation with a WPA Authenticator for client
stations and controls the roaming and IEEE 802.11 authentication and
association of the WLAN driver.

A command injection flaw was found in the way the wpa_cli utility executed
action scripts. If wpa_cli was run in daemon mode to execute an action
script (specified using the -a command line option), and wpa_supplicant was
configured to connect to a P2P group, malicious P2P group parameters could
cause wpa_cli to execute arbitrary code. (CVE-2014-3686)

Red Hat would like to thank Jouni Malinen for reporting this issue.

All wpa_supplicant users are advised to upgrade to this updated package,
which contains a backported patch to correct this issue.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1151259 – CVE-2014-3686 wpa_supplicant and hostapd: wpa_cli and hostapd_cli remote command execution issue

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
wpa_supplicant-2.0-13.el7_0.src.rpm

x86_64:
wpa_supplicant-2.0-13.el7_0.x86_64.rpm
wpa_supplicant-debuginfo-2.0-13.el7_0.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
wpa_supplicant-2.0-13.el7_0.src.rpm

x86_64:
wpa_supplicant-2.0-13.el7_0.x86_64.rpm
wpa_supplicant-debuginfo-2.0-13.el7_0.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
wpa_supplicant-2.0-13.el7_0.src.rpm

ppc64:
wpa_supplicant-2.0-13.el7_0.ppc64.rpm
wpa_supplicant-debuginfo-2.0-13.el7_0.ppc64.rpm

s390x:
wpa_supplicant-2.0-13.el7_0.s390x.rpm
wpa_supplicant-debuginfo-2.0-13.el7_0.s390x.rpm

x86_64:
wpa_supplicant-2.0-13.el7_0.x86_64.rpm
wpa_supplicant-debuginfo-2.0-13.el7_0.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
wpa_supplicant-2.0-13.el7_0.src.rpm

x86_64:
wpa_supplicant-2.0-13.el7_0.x86_64.rpm
wpa_supplicant-debuginfo-2.0-13.el7_0.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/

7. References:

https://access.redhat.com/security/cve/CVE-2014-3686
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2014 Red Hat, Inc.
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