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Sicherheit: Skript gegen L1TF-Fehler in kernel-livepatch-tools
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Name: Skript gegen L1TF-Fehler in kernel-livepatch-tools
ID: SUSE-SU-2018:2426-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Live Patching 12-SP3, SUSE Linux Enterprise Module for Live Patching 15
Datum: Sa, 18. August 2018, 00:46
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3646
Applikationen: kernel-livepatch-tools

Originalnachricht

   SUSE Security Update: Security update for kernel-livepatch-tools
______________________________________________________________________________

Announcement ID: SUSE-SU-2018:2426-1
Rating: important
References: #1099306
Cross-References: CVE-2018-3646
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15
SUSE Linux Enterprise Live Patching 12-SP3
______________________________________________________________________________

An update that fixes one vulnerability is now available.

Description:

This update for kernel-livepatch-tools fixes the following issues:

Add script for disabling SMT to help with the mitigation of the "L1
Terminal Fault" issue (CVE-2018-3646 bsc#1099306)

The script is called "klp-kvm-l1tf-ctrl-smt" and is used for
enabling or
disabling SMT to mitigate the issue when this administrative decision is
taken.

Disabling SMT:

klp-kvm-l1tf-ctrl-smt -d

Enabling SMT:

klp-kvm-l1tf-ctrl-smt -e


Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation
methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- SUSE Linux Enterprise Module for Live Patching 15:

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2018-1687=1

- SUSE Linux Enterprise Live Patching 12-SP3:

zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2018-1682=1
SUSE-SLE-Live-Patching-12-SP3-2018-1683=1



Package List:

- SUSE Linux Enterprise Module for Live Patching 15 (ppc64le s390x x86_64):

kernel-livepatch-tools-1.1-5.3.1

- SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64):

kgraft-patch-4_4_138-94_39-default-2-2.1
kgraft-patch-4_4_138-94_39-default-debuginfo-2-2.1
kgraft-patch-4_4_140-94_42-default-2-2.1
kgraft-patch-4_4_140-94_42-default-debuginfo-2-2.1


References:

https://www.suse.com/security/cve/CVE-2018-3646.html
https://bugzilla.suse.com/1099306

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