drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Preisgabe von Informationen in Linux
Name: |
Preisgabe von Informationen in Linux |
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ID: |
RHSA-2018:1629-01 |
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Distribution: |
Red Hat |
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Plattformen: |
Red Hat Enterprise Linux |
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Datum: |
Di, 22. Mai 2018, 19:10 |
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Referenzen: |
https://access.redhat.com/security/cve/CVE-2018-3639
https://access.redhat.com/security/vulnerabilities/ssbd |
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Applikationen: |
Linux |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel security update Advisory ID: RHSA-2018:1629-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:1629 Issue date: 2018-05-21 CVE Names: CVE-2018-3639 =====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.
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 Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - noarch, ppc64le, s390x Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - noarch, ppc64le
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639)
Note: This issue is present in hardware and cannot be fully fixed via software update. The updated kernel packages provide software side of the mitigation for this hardware issue. To be fully functional, up-to-date CPU microcode applied on the system is required. Please refer to References section for further information about this issue, CPU microcode requirements and the potential performance impact.
In this update mitigations for x86-64 architecture are provided.
Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) 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
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1566890 - CVE-2018-3639 hw: cpu: speculative store bypass
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-862.3.2.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-862.3.2.el7.noarch.rpm kernel-doc-3.10.0-862.3.2.el7.noarch.rpm
x86_64: kernel-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.3.2.el7.x86_64.rpm kernel-devel-3.10.0-862.3.2.el7.x86_64.rpm kernel-headers-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-862.3.2.el7.x86_64.rpm perf-3.10.0-862.3.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm python-perf-3.10.0-862.3.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-862.3.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: kernel-3.10.0-862.3.2.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-862.3.2.el7.noarch.rpm kernel-doc-3.10.0-862.3.2.el7.noarch.rpm
x86_64: kernel-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.3.2.el7.x86_64.rpm kernel-devel-3.10.0-862.3.2.el7.x86_64.rpm kernel-headers-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-862.3.2.el7.x86_64.rpm perf-3.10.0-862.3.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm python-perf-3.10.0-862.3.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-862.3.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: kernel-3.10.0-862.3.2.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-862.3.2.el7.noarch.rpm kernel-doc-3.10.0-862.3.2.el7.noarch.rpm
ppc64: kernel-3.10.0-862.3.2.el7.ppc64.rpm kernel-bootwrapper-3.10.0-862.3.2.el7.ppc64.rpm kernel-debug-3.10.0-862.3.2.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm kernel-debug-devel-3.10.0-862.3.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-862.3.2.el7.ppc64.rpm kernel-devel-3.10.0-862.3.2.el7.ppc64.rpm kernel-headers-3.10.0-862.3.2.el7.ppc64.rpm kernel-tools-3.10.0-862.3.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm kernel-tools-libs-3.10.0-862.3.2.el7.ppc64.rpm perf-3.10.0-862.3.2.el7.ppc64.rpm perf-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm python-perf-3.10.0-862.3.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm
ppc64le: kernel-3.10.0-862.3.2.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debug-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-862.3.2.el7.ppc64le.rpm kernel-devel-3.10.0-862.3.2.el7.ppc64le.rpm kernel-headers-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-libs-3.10.0-862.3.2.el7.ppc64le.rpm perf-3.10.0-862.3.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm python-perf-3.10.0-862.3.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm
s390x: kernel-3.10.0-862.3.2.el7.s390x.rpm kernel-debug-3.10.0-862.3.2.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-862.3.2.el7.s390x.rpm kernel-debug-devel-3.10.0-862.3.2.el7.s390x.rpm kernel-debuginfo-3.10.0-862.3.2.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-862.3.2.el7.s390x.rpm kernel-devel-3.10.0-862.3.2.el7.s390x.rpm kernel-headers-3.10.0-862.3.2.el7.s390x.rpm kernel-kdump-3.10.0-862.3.2.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-862.3.2.el7.s390x.rpm kernel-kdump-devel-3.10.0-862.3.2.el7.s390x.rpm perf-3.10.0-862.3.2.el7.s390x.rpm perf-debuginfo-3.10.0-862.3.2.el7.s390x.rpm python-perf-3.10.0-862.3.2.el7.s390x.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.s390x.rpm
x86_64: kernel-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.3.2.el7.x86_64.rpm kernel-devel-3.10.0-862.3.2.el7.x86_64.rpm kernel-headers-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-862.3.2.el7.x86_64.rpm perf-3.10.0-862.3.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm python-perf-3.10.0-862.3.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
noarch: kernel-abi-whitelists-3.10.0-862.3.2.el7.noarch.rpm kernel-doc-3.10.0-862.3.2.el7.noarch.rpm
ppc64le: kernel-3.10.0-862.3.2.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debug-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-862.3.2.el7.ppc64le.rpm kernel-devel-3.10.0-862.3.2.el7.ppc64le.rpm kernel-headers-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-libs-3.10.0-862.3.2.el7.ppc64le.rpm perf-3.10.0-862.3.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm python-perf-3.10.0-862.3.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm
s390x: kernel-3.10.0-862.3.2.el7.s390x.rpm kernel-debug-3.10.0-862.3.2.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-862.3.2.el7.s390x.rpm kernel-debug-devel-3.10.0-862.3.2.el7.s390x.rpm kernel-debuginfo-3.10.0-862.3.2.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-862.3.2.el7.s390x.rpm kernel-devel-3.10.0-862.3.2.el7.s390x.rpm kernel-headers-3.10.0-862.3.2.el7.s390x.rpm kernel-kdump-3.10.0-862.3.2.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-862.3.2.el7.s390x.rpm kernel-kdump-devel-3.10.0-862.3.2.el7.s390x.rpm perf-3.10.0-862.3.2.el7.s390x.rpm perf-debuginfo-3.10.0-862.3.2.el7.s390x.rpm python-perf-3.10.0-862.3.2.el7.s390x.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.s390x.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64: kernel-debug-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-862.3.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-862.3.2.el7.ppc64.rpm perf-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.ppc64.rpm
ppc64le: kernel-debug-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debug-devel-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-862.3.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm
x86_64: kernel-debug-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-862.3.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):
noarch: kernel-doc-3.10.0-862.3.2.el7.noarch.rpm
ppc64le: kernel-debug-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debug-devel-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-862.3.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.ppc64le.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: kernel-3.10.0-862.3.2.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-862.3.2.el7.noarch.rpm kernel-doc-3.10.0-862.3.2.el7.noarch.rpm
x86_64: kernel-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.3.2.el7.x86_64.rpm kernel-devel-3.10.0-862.3.2.el7.x86_64.rpm kernel-headers-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-862.3.2.el7.x86_64.rpm perf-3.10.0-862.3.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm python-perf-3.10.0-862.3.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-862.3.2.el7.x86_64.rpm perf-debuginfo-3.10.0-862.3.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-862.3.2.el7.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-2018-3639 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/ssbd
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
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