drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in Linux
Name: |
Denial of Service in Linux |
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ID: |
RHSA-2017:0004-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Di, 3. Januar 2017, 22:37 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2016-8666 |
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Applikationen: |
Linux |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2017:0004-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0004.html Issue date: 2017-01-03 CVE Names: CVE-2016-8666 =====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.1 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. 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 ComputeNode EUS (v. 7.1) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.1) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.1) - ppc64, ppc64le, s390x, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* A flaw was found in the way the Linux kernel's networking subsystem handled offloaded packets with multiple layers of encapsulation in the GRO (Generic Receive Offload) code path. A remote attacker could use this flaw to trigger unbounded recursion in the kernel that could lead to stack corruption, resulting in a system crash. (CVE-2016-8666, Important)
Bug Fix(es):
* When a virtual machine (VM) with PCI-Passthrough interfaces was recreated, the operating system rebooted. This update fixes the race condition between the eventfd daemon and the virqfd daemon. As a result, the operating system no longer reboots in the described situation. (BZ#1391609)
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
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1384991 - CVE-2016-8666 kernel: Remotely triggerable recursion in GRE code leading to kernel crash
6. Package List:
Red Hat Enterprise Linux ComputeNode EUS (v. 7.1):
Source: kernel-3.10.0-229.46.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-229.46.1.el7.noarch.rpm kernel-doc-3.10.0-229.46.1.el7.noarch.rpm
x86_64: kernel-3.10.0-229.46.1.el7.x86_64.rpm kernel-debug-3.10.0-229.46.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-229.46.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-229.46.1.el7.x86_64.rpm kernel-devel-3.10.0-229.46.1.el7.x86_64.rpm kernel-headers-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-229.46.1.el7.x86_64.rpm perf-3.10.0-229.46.1.el7.x86_64.rpm perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1):
x86_64: kernel-debug-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-229.46.1.el7.x86_64.rpm perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm python-perf-3.10.0-229.46.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.1):
Source: kernel-3.10.0-229.46.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-229.46.1.el7.noarch.rpm kernel-doc-3.10.0-229.46.1.el7.noarch.rpm
ppc64: kernel-3.10.0-229.46.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-229.46.1.el7.ppc64.rpm kernel-debug-3.10.0-229.46.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-229.46.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-229.46.1.el7.ppc64.rpm kernel-devel-3.10.0-229.46.1.el7.ppc64.rpm kernel-headers-3.10.0-229.46.1.el7.ppc64.rpm kernel-tools-3.10.0-229.46.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-229.46.1.el7.ppc64.rpm perf-3.10.0-229.46.1.el7.ppc64.rpm perf-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm
s390x: kernel-3.10.0-229.46.1.el7.s390x.rpm kernel-debug-3.10.0-229.46.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-229.46.1.el7.s390x.rpm kernel-debug-devel-3.10.0-229.46.1.el7.s390x.rpm kernel-debuginfo-3.10.0-229.46.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-229.46.1.el7.s390x.rpm kernel-devel-3.10.0-229.46.1.el7.s390x.rpm kernel-headers-3.10.0-229.46.1.el7.s390x.rpm kernel-kdump-3.10.0-229.46.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-229.46.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-229.46.1.el7.s390x.rpm perf-3.10.0-229.46.1.el7.s390x.rpm perf-debuginfo-3.10.0-229.46.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-229.46.1.el7.s390x.rpm
x86_64: kernel-3.10.0-229.46.1.el7.x86_64.rpm kernel-debug-3.10.0-229.46.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-229.46.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-229.46.1.el7.x86_64.rpm kernel-devel-3.10.0-229.46.1.el7.x86_64.rpm kernel-headers-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-229.46.1.el7.x86_64.rpm perf-3.10.0-229.46.1.el7.x86_64.rpm perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.1):
Source: kernel-3.10.0-229.46.1.ael7b.src.rpm
noarch: kernel-abi-whitelists-3.10.0-229.46.1.ael7b.noarch.rpm kernel-doc-3.10.0-229.46.1.ael7b.noarch.rpm
ppc64le: kernel-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-bootwrapper-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-debug-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-debug-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-devel-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-headers-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-tools-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-tools-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-tools-libs-3.10.0-229.46.1.ael7b.ppc64le.rpm perf-3.10.0-229.46.1.ael7b.ppc64le.rpm perf-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm python-perf-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 7.1):
ppc64: kernel-debug-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-229.46.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-229.46.1.el7.ppc64.rpm perf-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm python-perf-3.10.0-229.46.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm
s390x: kernel-debug-debuginfo-3.10.0-229.46.1.el7.s390x.rpm kernel-debuginfo-3.10.0-229.46.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-229.46.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-229.46.1.el7.s390x.rpm perf-debuginfo-3.10.0-229.46.1.el7.s390x.rpm python-perf-3.10.0-229.46.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-229.46.1.el7.s390x.rpm
x86_64: kernel-debug-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-229.46.1.el7.x86_64.rpm perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm python-perf-3.10.0-229.46.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 7.1):
ppc64le: kernel-debug-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-debug-devel-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-tools-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm kernel-tools-libs-devel-3.10.0-229.46.1.ael7b.ppc64le.rpm perf-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm python-perf-3.10.0-229.46.1.ael7b.ppc64le.rpm python-perf-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.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-2016-8666 https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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