23 July 2015
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1925 Low: wpa_supplicant security and enhancement update 23 July 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: wpa_supplicant Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-4142 Reference: ESB-2015.1573.2 ESB-2015.1523 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2015-1439.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Low: wpa_supplicant security and enhancement update Advisory ID: RHSA-2015:1439-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1439.html Issue date: 2015-07-22 Updated on: 2015-05-27 CVE Names: CVE-2015-4142 ===================================================================== 1. Summary: An updated wpa_supplicant package that fixes one security issue and adds one enhancement is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Low 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 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 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. An integer underflow flaw, leading to a buffer over-read, was found in the way wpa_supplicant handled WMM Action frames. A specially crafted frame could possibly allow an attacker within Wi-Fi radio range to cause wpa_supplicant to crash. (CVE-2015-4142) This update includes the following enhancement: * Prior to this update, wpa_supplicant did not provide a way to require the host name to be listed in an X.509 certificate's Common Name or Subject Alternative Name, and only allowed host name suffix or subject substring checks. This update introduces a new configuration directive, 'domain_match', which adds a full host name check. (BZ#1186806) All wpa_supplicant users are advised to upgrade to this updated package, which contains a backported patch to correct this issue and adds this enhancement. After installing this update, the wpa_supplicant service will be restarted automatically. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1221178 - CVE-2015-4142 wpa_supplicant and hostapd: integer underflow in AP mode WMM Action frame processing 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: wpa_supplicant-0.7.3-6.el6.src.rpm i386: wpa_supplicant-0.7.3-6.el6.i686.rpm wpa_supplicant-debuginfo-0.7.3-6.el6.i686.rpm x86_64: wpa_supplicant-0.7.3-6.el6.x86_64.rpm wpa_supplicant-debuginfo-0.7.3-6.el6.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: wpa_supplicant-0.7.3-6.el6.src.rpm x86_64: wpa_supplicant-0.7.3-6.el6.x86_64.rpm wpa_supplicant-debuginfo-0.7.3-6.el6.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: wpa_supplicant-0.7.3-6.el6.src.rpm i386: wpa_supplicant-0.7.3-6.el6.i686.rpm wpa_supplicant-debuginfo-0.7.3-6.el6.i686.rpm ppc64: wpa_supplicant-0.7.3-6.el6.ppc64.rpm wpa_supplicant-debuginfo-0.7.3-6.el6.ppc64.rpm s390x: wpa_supplicant-0.7.3-6.el6.s390x.rpm wpa_supplicant-debuginfo-0.7.3-6.el6.s390x.rpm x86_64: wpa_supplicant-0.7.3-6.el6.x86_64.rpm wpa_supplicant-debuginfo-0.7.3-6.el6.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: wpa_supplicant-0.7.3-6.el6.src.rpm i386: wpa_supplicant-0.7.3-6.el6.i686.rpm wpa_supplicant-debuginfo-0.7.3-6.el6.i686.rpm x86_64: wpa_supplicant-0.7.3-6.el6.x86_64.rpm wpa_supplicant-debuginfo-0.7.3-6.el6.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-2015-4142 https://access.redhat.com/security/updates/classification/#low 8. Contact: The Red Hat security contact is <firstname.lastname@example.org>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFVrzdFXlSAg2UNWIIRApXaAKCiCshtXHBP+XQsR1LzqgRpPH31zgCgmZeu g28kC23tTBJZyqARdyFSLAU= =Dmgb - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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