[RHSA-2016:1086-01] Moderate: libndp security update

Fabricante: RedHat
Fecha: 17/05/2016
Identificador: RHSA-2016:1086-01
[RHSA-2016:1086-01] Moderate: libndp security update
-----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 . 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-----