-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libvirt security and bug fix update Advisory ID: RHSA-2018:2006-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:2006 Issue date: 2018-06-26 CVE Names: CVE-2018-3639 ===================================================================== 1. Summary: An update for libvirt is now available for Red Hat Enterprise Linux 7.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux ComputeNode EUS (v. 7.4) - x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.4) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.4) - ppc64, ppc64le, s390x, x86_64 3. Description: The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems. Security Fix(es): * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639) Note: This is the libvirt side of the CVE-2018-3639 mitigation that includes support for guests running on hosts with AMD CPUs. Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue. Bug Fix(es): * The "virsh capabilities" command previously displayed an inaccurate number of 4 KiB memory pages on systems with very large amounts of memory. This update optimizes the memory diagnostic mechanism to ensure memory page numbers are displayed correctly on such systems. (BZ#1582416) * After starting a large amount of guest virtual machines in a single session, the libvirtd service in some cases became unable to start any other guests until it was restarted. This update ensures that libvirtd properly frees memory used for D-Bus replies, which prevents the described problem from occurring. (BZ#1588390) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the updated packages, libvirtd will be restarted automatically. 5. Bugs fixed (https://bugzilla.redhat.com/): 1566890 - CVE-2018-3639 hw: cpu: speculative store bypass 1582416 - virsh capabilities reports invalid values for 4K pages [rhel-7.4.z] 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.4): Source: libvirt-3.2.0-14.el7_4.11.src.rpm x86_64: libvirt-client-3.2.0-14.el7_4.11.i686.rpm libvirt-client-3.2.0-14.el7_4.11.x86_64.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.i686.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.x86_64.rpm libvirt-libs-3.2.0-14.el7_4.11.i686.rpm libvirt-libs-3.2.0-14.el7_4.11.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4): x86_64: libvirt-3.2.0-14.el7_4.11.x86_64.rpm libvirt-admin-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-config-network-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-config-nwfilter-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-interface-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-lxc-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-network-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-nodedev-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-nwfilter-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-qemu-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-secret-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-core-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-disk-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-gluster-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-iscsi-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-logical-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-mpath-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-rbd-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-scsi-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-kvm-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-lxc-3.2.0-14.el7_4.11.x86_64.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.i686.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.x86_64.rpm libvirt-devel-3.2.0-14.el7_4.11.i686.rpm libvirt-devel-3.2.0-14.el7_4.11.x86_64.rpm libvirt-docs-3.2.0-14.el7_4.11.x86_64.rpm libvirt-lock-sanlock-3.2.0-14.el7_4.11.x86_64.rpm libvirt-login-shell-3.2.0-14.el7_4.11.x86_64.rpm libvirt-nss-3.2.0-14.el7_4.11.i686.rpm libvirt-nss-3.2.0-14.el7_4.11.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.4): Source: libvirt-3.2.0-14.el7_4.11.src.rpm ppc64: libvirt-3.2.0-14.el7_4.11.ppc64.rpm libvirt-client-3.2.0-14.el7_4.11.ppc.rpm libvirt-client-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-config-network-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-config-nwfilter-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-interface-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-lxc-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-network-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-nodedev-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-nwfilter-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-qemu-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-secret-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-storage-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-storage-core-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-storage-disk-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-storage-iscsi-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-storage-logical-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-storage-mpath-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-driver-storage-scsi-3.2.0-14.el7_4.11.ppc64.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.ppc.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.ppc64.rpm libvirt-devel-3.2.0-14.el7_4.11.ppc.rpm libvirt-devel-3.2.0-14.el7_4.11.ppc64.rpm libvirt-docs-3.2.0-14.el7_4.11.ppc64.rpm libvirt-libs-3.2.0-14.el7_4.11.ppc.rpm libvirt-libs-3.2.0-14.el7_4.11.ppc64.rpm ppc64le: libvirt-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-client-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-config-network-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-config-nwfilter-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-interface-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-lxc-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-network-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-nodedev-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-nwfilter-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-qemu-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-secret-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-storage-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-storage-core-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-storage-disk-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-storage-iscsi-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-storage-logical-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-storage-mpath-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-driver-storage-scsi-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-kvm-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-devel-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-docs-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-libs-3.2.0-14.el7_4.11.ppc64le.rpm s390x: libvirt-3.2.0-14.el7_4.11.s390x.rpm libvirt-client-3.2.0-14.el7_4.11.s390.rpm libvirt-client-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-config-network-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-config-nwfilter-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-interface-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-lxc-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-network-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-nodedev-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-nwfilter-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-secret-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-storage-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-storage-core-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-storage-disk-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-storage-iscsi-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-storage-logical-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-storage-mpath-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-driver-storage-scsi-3.2.0-14.el7_4.11.s390x.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.s390.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.s390x.rpm libvirt-devel-3.2.0-14.el7_4.11.s390.rpm libvirt-devel-3.2.0-14.el7_4.11.s390x.rpm libvirt-docs-3.2.0-14.el7_4.11.s390x.rpm libvirt-libs-3.2.0-14.el7_4.11.s390.rpm libvirt-libs-3.2.0-14.el7_4.11.s390x.rpm x86_64: libvirt-3.2.0-14.el7_4.11.x86_64.rpm libvirt-client-3.2.0-14.el7_4.11.i686.rpm libvirt-client-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-config-network-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-config-nwfilter-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-interface-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-lxc-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-network-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-nodedev-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-nwfilter-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-qemu-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-secret-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-core-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-disk-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-gluster-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-iscsi-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-logical-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-mpath-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-rbd-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-driver-storage-scsi-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-kvm-3.2.0-14.el7_4.11.x86_64.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.i686.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.x86_64.rpm libvirt-devel-3.2.0-14.el7_4.11.i686.rpm libvirt-devel-3.2.0-14.el7_4.11.x86_64.rpm libvirt-docs-3.2.0-14.el7_4.11.x86_64.rpm libvirt-libs-3.2.0-14.el7_4.11.i686.rpm libvirt-libs-3.2.0-14.el7_4.11.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.4): ppc64: libvirt-admin-3.2.0-14.el7_4.11.ppc64.rpm libvirt-daemon-lxc-3.2.0-14.el7_4.11.ppc64.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.ppc.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.ppc64.rpm libvirt-lock-sanlock-3.2.0-14.el7_4.11.ppc64.rpm libvirt-login-shell-3.2.0-14.el7_4.11.ppc64.rpm libvirt-nss-3.2.0-14.el7_4.11.ppc.rpm libvirt-nss-3.2.0-14.el7_4.11.ppc64.rpm ppc64le: libvirt-admin-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-daemon-lxc-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-lock-sanlock-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-login-shell-3.2.0-14.el7_4.11.ppc64le.rpm libvirt-nss-3.2.0-14.el7_4.11.ppc64le.rpm s390x: libvirt-admin-3.2.0-14.el7_4.11.s390x.rpm libvirt-daemon-lxc-3.2.0-14.el7_4.11.s390x.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.s390.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.s390x.rpm libvirt-login-shell-3.2.0-14.el7_4.11.s390x.rpm libvirt-nss-3.2.0-14.el7_4.11.s390.rpm libvirt-nss-3.2.0-14.el7_4.11.s390x.rpm x86_64: libvirt-admin-3.2.0-14.el7_4.11.x86_64.rpm libvirt-daemon-lxc-3.2.0-14.el7_4.11.x86_64.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.i686.rpm libvirt-debuginfo-3.2.0-14.el7_4.11.x86_64.rpm libvirt-lock-sanlock-3.2.0-14.el7_4.11.x86_64.rpm libvirt-login-shell-3.2.0-14.el7_4.11.x86_64.rpm libvirt-nss-3.2.0-14.el7_4.11.i686.rpm libvirt-nss-3.2.0-14.el7_4.11.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2018-3639 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2018 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBWzJob9zjgjWX9erEAQipmxAAm6SvkbLr9TciYodrqAy9XsrDiiTAS/ja XfprQKoSBZhQBYHugmeDWpDp93cFRuYbBOkZkofvyJ1OspQnZBIokYihFUnf0Kjl EQYQZaaEBklybH3JmV8e6Vx3i3rOgppFcbOHWXAfvhVLrWa1h0MaOj2v1EJhUR8e 8n3As+3BgoSlDYW9hM1Q5i9/j/VD7IsE/WwEN4TvPspYNonTowkGijJaoWQIy8Fj PMcJipaPZFnyxMXh4Gw8XbCqBupPRALhGVQ//yIyow2GlWlEHfT56BykItb1v9SE ptzsMqup5/Ncn6NOGtfIAd55PTabHuuaPk4IiX5PP2AS7jTQy843EzGYmuoQim41 9vGn1O0zijh5FV3N/ZBQRqjpNsdEDouRN1L2ET26/PrXVUsnkihsB6gWkA4yasl2 2MSGPJleUzN2hty2EHW1Sm1JyWOLdosPjWyiOTFW3+cA64miIqGtI0Jhy69b18sM KjOYMO0+vAngMa8V6ZEgUiYQVdxdZQRNQIulD4wSTLqLKsZIsSe4TP9tW7XZdL0r aczI1IaI5ZFCSnVfO/2qxrJfvPK9PQIdHhPM6tRpqBN1Qi6mcSoYyIOYXwmL7jWH dJ1TOjzmowubW1HTjDYIkE74jh+fYWgE8G+Ubl8BKNuWR4P1I4baZZG+BEElUZwi SCla88BgBqQ= =V6S0 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce