drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in libndp
Name: |
Denial of Service in libndp |
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ID: |
RHSA-2016:1086-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Di, 17. Mai 2016, 22:20 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2016-3698 |
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Applikationen: |
libndp |
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Originalnachricht |
===================================================================== 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
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