Security update for qemu

SUSE Security Update: Security update for qemu
Announcement ID: SUSE-SU-2018:1378-1
Rating: important
References: #1070615 #1092885
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: