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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1240 Moderate: libndp security update 18 May 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libndp Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-3698 Reference: ESB-2016.1238 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2016-1086.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: libndp security update Advisory ID: RHSA-2016:1086-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1086.html Issue date: 2016-05-17 CVE Names: CVE-2016-3698 ===================================================================== 1. Summary: An update for libndp is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: Libndp is a library (used by NetworkManager) that provides a wrapper for the IPv6 Neighbor Discovery Protocol. It also provides a tool named ndptool for sending and receiving NDP messages. Security Fix(es): * It was found that libndp did not properly validate and check the origin of Neighbor Discovery Protocol (NDP) messages. An attacker on a non-local network could use this flaw to advertise a node as a router, allowing them to perform man-in-the-middle attacks on a connecting client, or disrupt the network connectivity of that client. (CVE-2016-3698) Red Hat would like to thank Julien Bernard (Viagénie) for reporting this issue. 4. 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 After installing this update, all running applications using libndp (for example, Network Manager) must be restarted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1329366 - CVE-2016-3698 libndp: denial of service due to insufficient validation of source of NDP messages 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: libndp-1.2-6.el7_2.src.rpm x86_64: libndp-1.2-6.el7_2.i686.rpm libndp-1.2-6.el7_2.x86_64.rpm libndp-debuginfo-1.2-6.el7_2.i686.rpm libndp-debuginfo-1.2-6.el7_2.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: libndp-debuginfo-1.2-6.el7_2.i686.rpm libndp-debuginfo-1.2-6.el7_2.x86_64.rpm libndp-devel-1.2-6.el7_2.i686.rpm libndp-devel-1.2-6.el7_2.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: libndp-1.2-6.el7_2.src.rpm x86_64: libndp-1.2-6.el7_2.i686.rpm libndp-1.2-6.el7_2.x86_64.rpm libndp-debuginfo-1.2-6.el7_2.i686.rpm libndp-debuginfo-1.2-6.el7_2.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: libndp-debuginfo-1.2-6.el7_2.i686.rpm libndp-debuginfo-1.2-6.el7_2.x86_64.rpm libndp-devel-1.2-6.el7_2.i686.rpm libndp-devel-1.2-6.el7_2.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: libndp-1.2-6.el7_2.src.rpm ppc64: libndp-1.2-6.el7_2.ppc.rpm libndp-1.2-6.el7_2.ppc64.rpm libndp-debuginfo-1.2-6.el7_2.ppc.rpm libndp-debuginfo-1.2-6.el7_2.ppc64.rpm ppc64le: libndp-1.2-6.el7_2.ppc64le.rpm libndp-debuginfo-1.2-6.el7_2.ppc64le.rpm s390x: libndp-1.2-6.el7_2.s390.rpm libndp-1.2-6.el7_2.s390x.rpm libndp-debuginfo-1.2-6.el7_2.s390.rpm libndp-debuginfo-1.2-6.el7_2.s390x.rpm x86_64: libndp-1.2-6.el7_2.i686.rpm libndp-1.2-6.el7_2.x86_64.rpm libndp-debuginfo-1.2-6.el7_2.i686.rpm libndp-debuginfo-1.2-6.el7_2.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: libndp-debuginfo-1.2-6.el7_2.ppc.rpm libndp-debuginfo-1.2-6.el7_2.ppc64.rpm libndp-devel-1.2-6.el7_2.ppc.rpm libndp-devel-1.2-6.el7_2.ppc64.rpm ppc64le: libndp-debuginfo-1.2-6.el7_2.ppc64le.rpm libndp-devel-1.2-6.el7_2.ppc64le.rpm s390x: libndp-debuginfo-1.2-6.el7_2.s390.rpm libndp-debuginfo-1.2-6.el7_2.s390x.rpm libndp-devel-1.2-6.el7_2.s390.rpm libndp-devel-1.2-6.el7_2.s390x.rpm x86_64: libndp-debuginfo-1.2-6.el7_2.i686.rpm libndp-debuginfo-1.2-6.el7_2.x86_64.rpm libndp-devel-1.2-6.el7_2.i686.rpm libndp-devel-1.2-6.el7_2.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: libndp-1.2-6.el7_2.src.rpm x86_64: libndp-1.2-6.el7_2.i686.rpm libndp-1.2-6.el7_2.x86_64.rpm libndp-debuginfo-1.2-6.el7_2.i686.rpm libndp-debuginfo-1.2-6.el7_2.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: libndp-debuginfo-1.2-6.el7_2.i686.rpm libndp-debuginfo-1.2-6.el7_2.x86_64.rpm libndp-devel-1.2-6.el7_2.i686.rpm libndp-devel-1.2-6.el7_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/ 7. References: https://access.redhat.com/security/cve/CVE-2016-3698 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 2016 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFXOwkFXlSAg2UNWIIRAjNkAKDC4cGXdR8OrGfFvHoXNR+WWuSAGQCeIAbb 7ug6NGbWvaHaD5eRAyt4LTY= =78vq - -----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). 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