SUSE Security Update: Security update for xen
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Announcement ID: SUSE-SU-2017:1770-1
Rating: important
References: #1014136 #1026236 #1027519 #1031460 #1032148
#1034845 #1036470 #1037243 #1042160 #1042863
#1042882 #1042893 #1042915 #1042924 #1042931
#1042938 #1043074 #1043297
Cross-References: CVE-2017-8112 CVE-2017-8309 CVE-2017-8905
CVE-2017-9330 CVE-2017-9374 CVE-2017-9503

Affected Products:
SUSE Linux Enterprise Software Development Kit 11-SP4
SUSE Linux Enterprise Server 11-SP4
SUSE Linux Enterprise Debuginfo 11-SP4
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An update that solves 6 vulnerabilities and has 12 fixes is
now available.

Description:

This update for xen fixes several issues.

These security issues were fixed:

– blkif responses leaked backend stack data, which allowed unprivileged
guest to obtain sensitive information from the host or other guests
(XSA-216, bsc#1042863)
– Page transfer might have allowed PV guest to elevate privilege (XSA-217,
bsc#1042882)
– Races in the grant table unmap code allowed for informations leaks and
potentially privilege escalation (XSA-218, bsc#1042893)
– Insufficient reference counts during shadow emulation allowed a
malicious pair of guest to elevate their privileges to the privileges
that XEN runs under (XSA-219, bsc#1042915)
– Stale P2M mappings due to insufficient error checking allowed malicious
guest to leak information or elevate privileges (XSA-222, bsc#1042931)
– Grant table operations mishandled reference counts allowing malicious
guests to escape (XSA-224, bsc#1042938)
– CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users
to cause a denial of service (infinite loop) by leveraging an incorrect
return value (bsc#1042160)
– CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers
to cause a denial of service (memory consumption) by repeatedly starting
and stopping audio capture (bsc#1037243)
– CVE-2017-8905: Xen a failsafe callback, which might have allowed PV
guest OS users to execute arbitrary code on the host OS (XSA-215,
bsc#1034845).
– CVE-2017-9503: The MegaRAID SAS 8708EM2 Host Bus Adapter emulation
support was vulnerable to a null pointer dereference issue which allowed
a privileged user inside guest to crash the Qemu process on the host
resulting in DoS (bsc#1043297)
– CVE-2017-9374: Missing free of ‘s->ipacket’, causes a host memory leak,
allowing for DoS (bsc#1043074)
– CVE-2017-8112: hw/scsi/vmw_pvscsi.c allowed local guest OS privileged
users to cause a denial of service (infinite loop and CPU consumption)
via the message ring page count (bsc#1036470)
– Missing NULL pointer check in event channel poll allows guests to DoS
the host (XSA-221, bsc#1042924)

These non-security issues were fixed:

– bsc#1032148: Ensure that time doesn’t goes backwards during live
migration of HVM domU
– bsc#1031460: Fixed DomU Live Migration
– bsc#1014136: Fixed kdump SLES12-SP2
– bsc#1026236: Equalized paravirtualized vs. fully virtualized migration
speed

Patch Instructions:

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:

– SUSE Linux Enterprise Software Development Kit 11-SP4:

zypper in -t patch sdksp4-xen-13193=1

– SUSE Linux Enterprise Server 11-SP4:

zypper in -t patch slessp4-xen-13193=1

– SUSE Linux Enterprise Debuginfo 11-SP4:

zypper in -t patch dbgsp4-xen-13193=1

To bring your system up-to-date, use “zypper patch”.

Package List:

– SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 x86_64):

xen-devel-4.4.4_20-60.3

– SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):

xen-kmp-default-4.4.4_20_3.0.101_104-60.3
xen-libs-4.4.4_20-60.3
xen-tools-domU-4.4.4_20-60.3

– SUSE Linux Enterprise Server 11-SP4 (x86_64):

xen-4.4.4_20-60.3
xen-doc-html-4.4.4_20-60.3
xen-libs-32bit-4.4.4_20-60.3
xen-tools-4.4.4_20-60.3

– SUSE Linux Enterprise Server 11-SP4 (i586):

xen-kmp-pae-4.4.4_20_3.0.101_104-60.3

– SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

xen-debuginfo-4.4.4_20-60.3
xen-debugsource-4.4.4_20-60.3

References:

https://www.suse.com/security/cve/CVE-2017-8112.html
https://www.suse.com/security/cve/CVE-2017-8309.html
https://www.suse.com/security/cve/CVE-2017-8905.html
https://www.suse.com/security/cve/CVE-2017-9330.html
https://www.suse.com/security/cve/CVE-2017-9374.html
https://www.suse.com/security/cve/CVE-2017-9503.html
https://bugzilla.suse.com/1014136
https://bugzilla.suse.com/1026236
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1031460
https://bugzilla.suse.com/1032148
https://bugzilla.suse.com/1034845
https://bugzilla.suse.com/1036470
https://bugzilla.suse.com/1037243
https://bugzilla.suse.com/1042160
https://bugzilla.suse.com/1042863
https://bugzilla.suse.com/1042882
https://bugzilla.suse.com/1042893
https://bugzilla.suse.com/1042915
https://bugzilla.suse.com/1042924
https://bugzilla.suse.com/1042931
https://bugzilla.suse.com/1042938
https://bugzilla.suse.com/1043074
https://bugzilla.suse.com/1043297

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