openSUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: openSUSE-SU-2018:0459-1
Rating: important
References: #1027519 #1035442 #1051729 #1061081 #1067317
#1068032 #1070158 #1070159 #1070160 #1070163
#1074562 #1076116 #1076180
Cross-References: CVE-2017-15595 CVE-2017-17563 CVE-2017-17564
CVE-2017-17565 CVE-2017-17566 CVE-2017-18030
CVE-2017-5715 CVE-2017-5753 CVE-2017-5754
CVE-2018-5683
Affected Products:
openSUSE Leap 42.3
______________________________________________________________________________
An update that solves 10 vulnerabilities and has three
fixes is now available.
Description:
This update for xen fixes several issues.
These security issues were fixed:
– CVE-2017-5753, CVE-2017-5715, CVE-2017-5754: Prevent information leaks
via side effects of speculative execution, aka “Spectre” and “Meltdown”
attacks (bsc#1074562, bsc#1068032)
– CVE-2017-15595: x86 PV guest OS users were able to cause a DoS
(unbounded recursion, stack consumption, and hypervisor crash) or
possibly gain privileges via crafted page-table stacking (bsc#1061081)
– CVE-2017-17566: Prevent PV guest OS users to cause a denial of service
(host OS crash) or gain host OS privileges in shadow mode by mapping a
certain auxiliary page (bsc#1070158).
– CVE-2017-17563: Prevent guest OS users to cause a denial of service
(host OS crash) or gain host OS privileges by leveraging an incorrect
mask for reference-count overflow checking in shadow mode (bsc#1070159).
– CVE-2017-17564: Prevent guest OS users to cause a denial of service
(host OS crash) or gain host OS privileges by leveraging incorrect error
handling for reference counting in shadow mode (bsc#1070160).
– CVE-2017-17565: Prevent PV guest OS users to cause a denial of service
(host OS crash) if shadow mode and log-dirty mode are in place, because
of an incorrect assertion related to M2P (bsc#1070163).
– CVE-2018-5683: The vga_draw_text function allowed local OS guest
privileged users to cause a denial of service (out-of-bounds read and
QEMU process crash) by leveraging improper memory address validation
(bsc#1076116).
– CVE-2017-18030: The cirrus_invalidate_region function allowed local OS
guest privileged users to cause a denial of service (out-of-bounds array
access and QEMU process crash) via vectors related to negative pitch
(bsc#1076180).
These non-security issues were fixed:
– bsc#1067317: pass cache=writeback|unsafe|directsync to qemu depending on
the libxl disk settings
– bsc#1051729: Prevent invalid symlinks after install of SLES 12 SP2
– bsc#1035442: Increased the value of LIBXL_DESTROY_TIMEOUT from 10 to 100
seconds. If many domUs shutdown in parallel the backends couldn’t keep up
– bsc#1027519: Added several upstream patches
This update was imported from the SUSE:SLE-12-SP3:Update update project.
Patch Instructions:
To install this openSUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:
– openSUSE Leap 42.3:
zypper in -t patch openSUSE-2018-169=1
To bring your system up-to-date, use “zypper patch”.
Package List:
– openSUSE Leap 42.3 (x86_64):
xen-4.9.1_08-16.1
xen-debugsource-4.9.1_08-16.1
xen-devel-4.9.1_08-16.1
xen-doc-html-4.9.1_08-16.1
xen-libs-4.9.1_08-16.1
xen-libs-debuginfo-4.9.1_08-16.1
xen-tools-4.9.1_08-16.1
xen-tools-debuginfo-4.9.1_08-16.1
xen-tools-domU-4.9.1_08-16.1
xen-tools-domU-debuginfo-4.9.1_08-16.1
References:
https://www.suse.com/security/cve/CVE-2017-15595.html
https://www.suse.com/security/cve/CVE-2017-17563.html
https://www.suse.com/security/cve/CVE-2017-17564.html
https://www.suse.com/security/cve/CVE-2017-17565.html
https://www.suse.com/security/cve/CVE-2017-17566.html
https://www.suse.com/security/cve/CVE-2017-18030.html
https://www.suse.com/security/cve/CVE-2017-5715.html
https://www.suse.com/security/cve/CVE-2017-5753.html
https://www.suse.com/security/cve/CVE-2017-5754.html
https://www.suse.com/security/cve/CVE-2018-5683.html
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1035442
https://bugzilla.suse.com/1051729
https://bugzilla.suse.com/1061081
https://bugzilla.suse.com/1067317
https://bugzilla.suse.com/1068032
https://bugzilla.suse.com/1070158
https://bugzilla.suse.com/1070159
https://bugzilla.suse.com/1070160
https://bugzilla.suse.com/1070163
https://bugzilla.suse.com/1074562
https://bugzilla.suse.com/1076116
https://bugzilla.suse.com/1076180
—
To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org
For additional commands, e-mail: opensuse-security-announce+help@opensuse.org
