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-----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 <secalert@redhat.com>. 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. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVbAhWX6ZAP0PgtI9AQIodxAAwPGDwAvuRDTK6W1L/3vlSavtepKtquVm /j+1HFZ9KrbovR606cR4oWBaQ196gKwJ7ev3j0gDvcq1z554JXfv2ZndBABXILjz wts6QpM5y1wQaGo5yArKP1jkoB3lAD9eOz2U5TIsbnKa/YYMc5Dmrql4Vi68W11/ SQO3OqU8CMA4OVhWSKDKzAtTdVVmidfV63pcLBLZ++3OoCBQmkkmB92dsG0a2dTC IJ9FJr+YI2vWQhN3ikLDu/wrX6pelqlnf5bNSXCJmR24NqPiRA8UFG0xQbo0QM9K WuPu03yHYDMWABKt7fVLgvbHkWeJ7lOZEp8O7AmH9h77I+WVuzOrX+QOQJjiq4KF r8vfYK0jWrYaqsiGO0o8pavfzv5KPPnO6Y3PEr4BGGmmRFs7fK/DoZJTRKHi+OFL 8D9ZqfGrRCUxUNF89+VQAL00glb3a7aE+K4o5XZIXLTuIXSFgBbSFIKr9zshgWKY k7z6iSKalCZZyoowp+WNLHZsAaje8ADRgSv1bv8YJ/mKMZ4+HiZ1BZtfBObRGaOj ms8gqINycTGhCgd1uECAWSSTyYDj8jh4lWW/0VOLZwjxr+nuS7/zbf8cfb+L0xig 1LnvP0rgH9OH4gWWcXewfrob3MA0B/yp5+XaeahMQ2lpDO/E3cZg5ofgDmEB0Ly+ bSD0e0FK2zE= =hTAy -----END PGP SIGNATURE-----