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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: SUSE-SU-2018:2416-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Server for SAP 12-SP2, SUSE Linux Enterprise Live Patching 12-SP3, SUSE Linux Enterprise Server 12-SP2-LTSS
Datum: Sa, 18. August 2018, 00:41
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18344
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 9 for
SLE 12 SP3)
______________________________________________________________________________

Announcement ID: SUSE-SU-2018:2416-1
Rating: important
References: #1097108 #1099306 #1103203
Cross-References: CVE-2017-18344 CVE-2018-10853 CVE-2018-3646

Affected Products:
SUSE Linux Enterprise Server for SAP 12-SP2
SUSE Linux Enterprise Server 12-SP2-LTSS
SUSE Linux Enterprise Live Patching 12-SP3
______________________________________________________________________________

An update that fixes three vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.4.114-94_14 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-2017-18344: The timer_create syscall implementation in
kernel/time/posix-timers.c didn't properly validate the
sigevent->sigev_notify field, which lead to out-of-bounds access in the
show_timer function (called when /proc/$PID/timers is read). This
allowed userspace applications to read arbitrary kernel memory (on a
kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE)
(bsc#1103203). before 4.14.8
- 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-SP2:

zypper in -t patch SUSE-SLE-SAP-12-SP2-2018-1667=1
SUSE-SLE-SAP-12-SP2-2018-1668=1

- SUSE Linux Enterprise Server 12-SP2-LTSS:

zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-1667=1
SUSE-SLE-SERVER-12-SP2-2018-1668=1

- SUSE Linux Enterprise Live Patching 12-SP3:

zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2018-1672=1
SUSE-SLE-Live-Patching-12-SP3-2018-1673=1 SUSE-SLE-Live-Patching-12-SP3-2018-1674=1 SUSE-SLE-Live-Patching-12-SP3-2018-1675=1 SUSE-SLE-Live-Patching-12-SP3-2018-1676=1 SUSE-SLE-Live-Patching-12-SP3-2018-1677=1



Package List:

- SUSE Linux Enterprise Server for SAP 12-SP2 (x86_64):

kgraft-patch-4_4_103-92_53-default-8-2.1
kgraft-patch-4_4_103-92_56-default-8-2.1

- SUSE Linux Enterprise Server 12-SP2-LTSS (x86_64):

kgraft-patch-4_4_103-92_53-default-8-2.1
kgraft-patch-4_4_103-92_56-default-8-2.1

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

kgraft-patch-4_4_103-6_33-default-8-2.1
kgraft-patch-4_4_103-6_33-default-debuginfo-8-2.1
kgraft-patch-4_4_103-6_38-default-8-2.1
kgraft-patch-4_4_103-6_38-default-debuginfo-8-2.1
kgraft-patch-4_4_114-94_11-default-6-2.1
kgraft-patch-4_4_114-94_11-default-debuginfo-6-2.1
kgraft-patch-4_4_114-94_14-default-6-2.1
kgraft-patch-4_4_114-94_14-default-debuginfo-6-2.1
kgraft-patch-4_4_92-6_30-default-8-2.1
kgraft-patch-4_4_92-6_30-default-debuginfo-8-2.1

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

kgraft-patch-4_4_92-6_18-default-9-2.1
kgraft-patch-4_4_92-6_18-default-debuginfo-9-2.1


References:

https://www.suse.com/security/cve/CVE-2017-18344.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/1097108
https://bugzilla.suse.com/1099306
https://bugzilla.suse.com/1103203

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