openSUSE Security Update: Security update for qemu
______________________________________________________________________________

Announcement ID: openSUSE-SU-2018:1628-1
Rating: important
References: #1092885 #1093169
Cross-References: CVE-2018-3639
Affected Products:
openSUSE Leap 15.0
______________________________________________________________________________

An update that solves one vulnerability and has one errata
is now available.

Description:

This update for qemu fixes the following issues:

This security issue was fixed:

– CVE-2018-3639: Spectre v4 vulnerability mitigation support for KVM
guests (bsc#1092885).

Systems with microprocessors utilizing speculative execution and
speculative execution of memory reads before the addresses of all prior
memory writes are known may allow unauthorized disclosure of information
to an attacker with local user access via a side-channel analysis.

This patch permits the new x86 cpu feature flag named “ssbd” to be
presented to the guest, given that the host has this feature, and KVM
exposes it to the guest as well.

For this feature to be enabled please use the qemu commandline
-cpu $MODEL,+spec-ctrl,+ssbd so the guest OS can take advantage of the
feature.

spec-ctrl and ssbd support is also required in the host.

This non-security issue was fixed:

– Fix qemu-guest-agent uninstall (boo#1093169)

Patch Instructions:

To install this openSUSE 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:

– openSUSE Leap 15.0:

zypper in -t patch openSUSE-2018-603=1

Package List:

– openSUSE Leap 15.0 (x86_64):

qemu-2.11.1-lp150.7.3.1
qemu-arm-2.11.1-lp150.7.3.1
qemu-arm-debuginfo-2.11.1-lp150.7.3.1
qemu-block-curl-2.11.1-lp150.7.3.1
qemu-block-curl-debuginfo-2.11.1-lp150.7.3.1
qemu-block-dmg-2.11.1-lp150.7.3.1
qemu-block-dmg-debuginfo-2.11.1-lp150.7.3.1
qemu-block-gluster-2.11.1-lp150.7.3.1
qemu-block-gluster-debuginfo-2.11.1-lp150.7.3.1
qemu-block-iscsi-2.11.1-lp150.7.3.1
qemu-block-iscsi-debuginfo-2.11.1-lp150.7.3.1
qemu-block-rbd-2.11.1-lp150.7.3.1
qemu-block-rbd-debuginfo-2.11.1-lp150.7.3.1
qemu-block-ssh-2.11.1-lp150.7.3.1
qemu-block-ssh-debuginfo-2.11.1-lp150.7.3.1
qemu-debuginfo-2.11.1-lp150.7.3.1
qemu-debugsource-2.11.1-lp150.7.3.1
qemu-extra-2.11.1-lp150.7.3.1
qemu-extra-debuginfo-2.11.1-lp150.7.3.1
qemu-guest-agent-2.11.1-lp150.7.3.1
qemu-guest-agent-debuginfo-2.11.1-lp150.7.3.1
qemu-ksm-2.11.1-lp150.7.3.1
qemu-kvm-2.11.1-lp150.7.3.1
qemu-lang-2.11.1-lp150.7.3.1
qemu-linux-user-2.11.1-lp150.7.3.1
qemu-linux-user-debuginfo-2.11.1-lp150.7.3.1
qemu-linux-user-debugsource-2.11.1-lp150.7.3.1
qemu-ppc-2.11.1-lp150.7.3.1
qemu-ppc-debuginfo-2.11.1-lp150.7.3.1
qemu-s390-2.11.1-lp150.7.3.1
qemu-s390-debuginfo-2.11.1-lp150.7.3.1
qemu-testsuite-2.11.1-lp150.7.3.1
qemu-tools-2.11.1-lp150.7.3.1
qemu-tools-debuginfo-2.11.1-lp150.7.3.1
qemu-x86-2.11.1-lp150.7.3.1
qemu-x86-debuginfo-2.11.1-lp150.7.3.1

– openSUSE Leap 15.0 (noarch):

qemu-ipxe-1.0.0-lp150.7.3.1
qemu-seabios-1.11.0-lp150.7.3.1
qemu-sgabios-8-lp150.7.3.1
qemu-vgabios-1.11.0-lp150.7.3.1

References:

https://www.suse.com/security/cve/CVE-2018-3639.html
https://bugzilla.suse.com/1092885
https://bugzilla.suse.com/1093169

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