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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: SUSE-SU-2018:2367-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Server for SAP 12-SP1, SUSE Linux Enterprise Server 12-SP1-LTSS
Datum: Do, 16. August 2018, 14:13
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11600
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3646
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10853
Applikationen: Linux

Originalnachricht

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 23
for SLE 12 SP1)
______________________________________________________________________________

Announcement ID: SUSE-SU-2018:2367-1
Rating: important
References: #1096564 #1097108 #1099306
Cross-References: CVE-2017-11600 CVE-2018-10853 CVE-2018-3646

Affected Products:
SUSE Linux Enterprise Server for SAP 12-SP1
SUSE Linux Enterprise Server 12-SP1-LTSS
______________________________________________________________________________

An update that fixes three vulnerabilities is now available.

Description:

This update for the Linux Kernel 3.12.74-60_64_66 fixes several issues.

The following security issues were fixed:

- CVE-2018-3646: Local attackers in virtualized guest systems could use
speculative code patterns on hyperthreaded processors to read data
present in the L1 Datacache used by other hyperthreads on the same CPU
core, potentially leaking sensitive data, even from other virtual
machines or the host system (bsc#1099306).
- CVE-2017-11600: net/xfrm/xfrm_policy.c did not ensure that the dir value
of xfrm_userpolicy_id is XFRM_POLICY_MAX or less, which allowed local
users to cause a denial of service (out-of-bounds access) or possibly
have unspecified other impact via an XFRM_MSG_MIGRATE xfrm Netlink
message (bsc#1096564)
- CVE-2018-10853: A flaw was found in kvm. In which certain instructions
such as sgdt/sidt call segmented_write_std didn't propagate access
correctly. As such, during userspace induced exception, the guest can
incorrectly assume that the exception happened in the kernel and panic.
(bsc#1097108).


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 Server for SAP 12-SP1:

zypper in -t patch SUSE-SLE-SAP-12-SP1-2018-1598=1

- SUSE Linux Enterprise Server 12-SP1-LTSS:

zypper in -t patch SUSE-SLE-SERVER-12-SP1-2018-1598=1



Package List:

- SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):

kgraft-patch-3_12_74-60_64_66-default-7-2.1
kgraft-patch-3_12_74-60_64_66-xen-7-2.1

- SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):

kgraft-patch-3_12_74-60_64_66-default-7-2.1
kgraft-patch-3_12_74-60_64_66-xen-7-2.1


References:

https://www.suse.com/security/cve/CVE-2017-11600.html
https://www.suse.com/security/cve/CVE-2018-10853.html
https://www.suse.com/security/cve/CVE-2018-3646.html
https://bugzilla.suse.com/1096564
https://bugzilla.suse.com/1097108
https://bugzilla.suse.com/1099306

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