-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: qemu-kvm-rhev security update Advisory ID: RHSA-2018:2289-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://access.redhat.com/errata/RHSA-2018:2289 Issue date: 2018-07-30 CVE Names: CVE-2018-3639 ==================================================================== 1. Summary: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 10. 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 OpenStack Platform 10.0 - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. 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) Acknowledgements: Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue. Note: This is the qemu-kvm-rhev side of the CVE-2018-3639 mitigation that includes support for guests running on hosts with AMD processors. For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1566890 - CVE-2018-3639 hw: cpu: speculative store bypass 6. Package List: Red Hat OpenStack Platform 10.0: Source: qemu-kvm-rhev-2.10.0-21.el7_5.4.src.rpm x86_64: qemu-img-rhev-2.10.0-21.el7_5.4.x86_64.rpm qemu-kvm-common-rhev-2.10.0-21.el7_5.4.x86_64.rpm qemu-kvm-rhev-2.10.0-21.el7_5.4.x86_64.rpm qemu-kvm-rhev-debuginfo-2.10.0-21.el7_5.4.x86_64.rpm qemu-kvm-tools-rhev-2.10.0-21.el7_5.4.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 iQIVAwUBW19Ns9zjgjWX9erEAQipahAAigneofmYw7qsChC1tM3QszUahVgiNb6u IZobEQnXa9TmvEs4/hHsZ+YknH7pECuncV+e/4UteANRYrmP8zfzriSdsNKysPx8 oWUiyLwwaGfm/oVTDHY834u2Zwr8cf9TO/N3QkwIeNH8rqYOay7fop9a9IxlKlzB QyadeMrg3o7m1co8vYAAqxkN7IFj/4nzuQjvBnMw2R7lAOGqOKhLaJ1d8pnvRGDB EdRnDMb90zTe+L30Sa2KGI0ZOM9jrN1QtywlcMW784T5oUEwBxgnMS0SNBmIKE9D WpKI432UaOv54zxcGrH9AoXXqoB3mKnQOiz8Ixy+ob6241GwF/U9TfQrz3Amix4e gDSBGI2z2iZC3R8Fvm9d4ZWs7QGw1w4cp+XxRJSXyw0RJfc6nbflStGrk6yTTnNl 5m7ta8rie6HIc26+Vnh6O90tqD88viAUCwB32TM8BdYLrXiT2AsRO5b3iWoeHVV0 E4VzlharkgqfpLZIq2RVhVpOKB9FhqpRlNbTRG95WuRgAugRamDpq3igfWg9nSdE uiPI70G2rFQ2LR4FmGSZyg8rqDiBRZmpN6JEpW+uFdDbK2fq8jt5h8/ZwnbhOJy3 kB7TkSMVTvBJczgGP1CkfBJUDVruC+H25hYFQsTQlprMEG/tMKLwVn0/+N1AFqyI tcFeoshwuNo=ATmR -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce