SUSE-SU-2018:1378-1: important: Security update for qemu

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for qemu
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:1378-1
Rating:             important
References:         #1070615 #1092885 
Cross-References:   CVE-2018-3639
Affected Products:
                    SUSE Linux Enterprise Server 12-SP3
                    SUSE Linux Enterprise Desktop 12-SP3
                    SUSE CaaS Platform ALL
______________________________________________________________________________

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

Description:

   This update for qemu fixes several 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:

   - bsc#1070615: Add new look up path "sys/class/tpm" for tpm cancel path


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 12-SP3:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-951=1

   - SUSE Linux Enterprise Desktop 12-SP3:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-951=1

   - SUSE CaaS Platform ALL:

      To install this update, use the SUSE CaaS Platform Velum dashboard.
      It will inform you if it detects new updates and let you then trigger
      updating of the complete cluster in a controlled way.



Package List:

   - SUSE Linux Enterprise Server 12-SP3 (aarch64 ppc64le s390x x86_64):

      qemu-2.9.1-6.16.1
      qemu-block-curl-2.9.1-6.16.1
      qemu-block-curl-debuginfo-2.9.1-6.16.1
      qemu-block-iscsi-2.9.1-6.16.1
      qemu-block-iscsi-debuginfo-2.9.1-6.16.1
      qemu-block-ssh-2.9.1-6.16.1
      qemu-block-ssh-debuginfo-2.9.1-6.16.1
      qemu-debugsource-2.9.1-6.16.1
      qemu-guest-agent-2.9.1-6.16.1
      qemu-guest-agent-debuginfo-2.9.1-6.16.1
      qemu-lang-2.9.1-6.16.1
      qemu-tools-2.9.1-6.16.1
      qemu-tools-debuginfo-2.9.1-6.16.1

   - SUSE Linux Enterprise Server 12-SP3 (aarch64 x86_64):

      qemu-block-rbd-2.9.1-6.16.1
      qemu-block-rbd-debuginfo-2.9.1-6.16.1

   - SUSE Linux Enterprise Server 12-SP3 (s390x x86_64):

      qemu-kvm-2.9.1-6.16.1

   - SUSE Linux Enterprise Server 12-SP3 (ppc64le):

      qemu-ppc-2.9.1-6.16.1
      qemu-ppc-debuginfo-2.9.1-6.16.1

   - SUSE Linux Enterprise Server 12-SP3 (aarch64):

      qemu-arm-2.9.1-6.16.1
      qemu-arm-debuginfo-2.9.1-6.16.1

   - SUSE Linux Enterprise Server 12-SP3 (x86_64):

      qemu-x86-2.9.1-6.16.1
      qemu-x86-debuginfo-2.9.1-6.16.1

   - SUSE Linux Enterprise Server 12-SP3 (noarch):

      qemu-ipxe-1.0.0-6.16.1
      qemu-seabios-1.10.2-6.16.1
      qemu-sgabios-8-6.16.1
      qemu-vgabios-1.10.2-6.16.1

   - SUSE Linux Enterprise Server 12-SP3 (s390x):

      qemu-s390-2.9.1-6.16.1
      qemu-s390-debuginfo-2.9.1-6.16.1

   - SUSE Linux Enterprise Desktop 12-SP3 (noarch):

      qemu-ipxe-1.0.0-6.16.1
      qemu-seabios-1.10.2-6.16.1
      qemu-sgabios-8-6.16.1
      qemu-vgabios-1.10.2-6.16.1

   - SUSE Linux Enterprise Desktop 12-SP3 (x86_64):

      qemu-2.9.1-6.16.1
      qemu-block-curl-2.9.1-6.16.1
      qemu-block-curl-debuginfo-2.9.1-6.16.1
      qemu-debugsource-2.9.1-6.16.1
      qemu-kvm-2.9.1-6.16.1
      qemu-tools-2.9.1-6.16.1
      qemu-tools-debuginfo-2.9.1-6.16.1
      qemu-x86-2.9.1-6.16.1

   - SUSE CaaS Platform ALL (x86_64):

      qemu-debugsource-2.9.1-6.16.1
      qemu-guest-agent-2.9.1-6.16.1
      qemu-guest-agent-debuginfo-2.9.1-6.16.1


References:

   https://www.suse.com/security/cve/CVE-2018-3639.html
   https://bugzilla.suse.com/1070615
   https://bugzilla.suse.com/1092885