SUSE Security Update: Security update for xen
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Announcement ID: SUSE-SU-2017:0983-1
Rating: important
References: #1014136 #1015348 #1022555 #1026236 #1027519
#1028235 #1029128 #1029827 #1030144 #1030442

Cross-References: CVE-2017-6505 CVE-2017-7228
Affected Products:
SUSE Linux Enterprise Software Development Kit 12-SP2
SUSE Linux Enterprise Server 12-SP2
SUSE Linux Enterprise Desktop 12-SP2
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An update that solves two vulnerabilities and has 8 fixes
is now available.

Description:

This update for xen to version 4.7.2 fixes the following issues:

These security issues were fixed:

– CVE-2017-7228: Broken check in memory_exchange() permited PV guest
breakout (bsc#1030442).
– XSA-206: Unprivileged guests issuing writes to xenstore were able to
stall progress of the control domain or driver domain, possibly leading
to a Denial of Service (DoS) of the entire host (bsc#1030144).
– CVE-2017-6505: The ohci_service_ed_list function in hw/usb/hcd-ohci.c
allowed local guest OS users to cause a denial of service (infinite
loop) via vectors involving the number of link endpoint list descriptors
(bsc#1028235).

These non-security issues were fixed:

– bsc#1015348: libvirtd didn’t not start during boot
– bsc#1014136: kdump couldn’t dump a kernel on SLES12-SP2 with Xen
hypervisor.
– bsc#1026236: Fixed paravirtualized performance
– bsc#1022555: Timeout in “execution of /etc/xen/scripts/block add”
– bsc#1029827: Forward port xenstored
– bsc#1029128: Make xen to really produce xen.efi with gcc48

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 12-SP2:

zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-572=1

– SUSE Linux Enterprise Server 12-SP2:

zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-572=1

– SUSE Linux Enterprise Desktop 12-SP2:

zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-572=1

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

Package List:

– SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 x86_64):

xen-debugsource-4.7.2_02-36.1
xen-devel-4.7.2_02-36.1

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

xen-4.7.2_02-36.1
xen-debugsource-4.7.2_02-36.1
xen-doc-html-4.7.2_02-36.1
xen-libs-32bit-4.7.2_02-36.1
xen-libs-4.7.2_02-36.1
xen-libs-debuginfo-32bit-4.7.2_02-36.1
xen-libs-debuginfo-4.7.2_02-36.1
xen-tools-4.7.2_02-36.1
xen-tools-debuginfo-4.7.2_02-36.1
xen-tools-domU-4.7.2_02-36.1
xen-tools-domU-debuginfo-4.7.2_02-36.1

– SUSE Linux Enterprise Desktop 12-SP2 (x86_64):

xen-4.7.2_02-36.1
xen-debugsource-4.7.2_02-36.1
xen-libs-32bit-4.7.2_02-36.1
xen-libs-4.7.2_02-36.1
xen-libs-debuginfo-32bit-4.7.2_02-36.1
xen-libs-debuginfo-4.7.2_02-36.1

References:

https://www.suse.com/security/cve/CVE-2017-6505.html
https://www.suse.com/security/cve/CVE-2017-7228.html
https://bugzilla.suse.com/1014136
https://bugzilla.suse.com/1015348
https://bugzilla.suse.com/1022555
https://bugzilla.suse.com/1026236
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1028235
https://bugzilla.suse.com/1029128
https://bugzilla.suse.com/1029827
https://bugzilla.suse.com/1030144
https://bugzilla.suse.com/1030442

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