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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3344 Important: libvirt security update 31 October 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libvirt Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Impact/Access: Access Privileged Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-3639 Reference: ASB-2018.0121 ESB-2018.3338 ESB-2018.3337 ESB-2018.3332 ESB-2018.3049 ESB-2018.3043 ESB-2018.3020 Original Bulletin: https://access.redhat.com/errata/RHSA-2018:3407 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libvirt security update Advisory ID: RHSA-2018:3407-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:3407 Issue date: 2018-10-30 CVE Names: CVE-2018-3639 ===================================================================== 1. Summary: An update for libvirt is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions. 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 Server AUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server E4S (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.2) - 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 virt-ssbd AMD) Note: This is the libvirt side of the CVE-2018-3639 mitigation. Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue. 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 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.2): Source: libvirt-1.2.17-13.el7_2.9.src.rpm x86_64: libvirt-1.2.17-13.el7_2.9.x86_64.rpm libvirt-client-1.2.17-13.el7_2.9.i686.rpm libvirt-client-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-config-network-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-config-nwfilter-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-interface-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-lxc-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-network-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-nodedev-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-nwfilter-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-qemu-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-secret-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-storage-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-kvm-1.2.17-13.el7_2.9.x86_64.rpm libvirt-debuginfo-1.2.17-13.el7_2.9.i686.rpm libvirt-debuginfo-1.2.17-13.el7_2.9.x86_64.rpm libvirt-devel-1.2.17-13.el7_2.9.i686.rpm libvirt-devel-1.2.17-13.el7_2.9.x86_64.rpm libvirt-docs-1.2.17-13.el7_2.9.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.2): Source: libvirt-1.2.17-13.el7_2.9.src.rpm x86_64: libvirt-1.2.17-13.el7_2.9.x86_64.rpm libvirt-client-1.2.17-13.el7_2.9.i686.rpm libvirt-client-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-config-network-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-config-nwfilter-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-interface-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-lxc-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-network-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-nodedev-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-nwfilter-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-qemu-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-secret-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-storage-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-kvm-1.2.17-13.el7_2.9.x86_64.rpm libvirt-debuginfo-1.2.17-13.el7_2.9.i686.rpm libvirt-debuginfo-1.2.17-13.el7_2.9.x86_64.rpm libvirt-devel-1.2.17-13.el7_2.9.i686.rpm libvirt-devel-1.2.17-13.el7_2.9.x86_64.rpm libvirt-docs-1.2.17-13.el7_2.9.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.2): Source: libvirt-1.2.17-13.el7_2.9.src.rpm x86_64: libvirt-1.2.17-13.el7_2.9.x86_64.rpm libvirt-client-1.2.17-13.el7_2.9.i686.rpm libvirt-client-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-config-network-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-config-nwfilter-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-interface-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-lxc-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-network-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-nodedev-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-nwfilter-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-qemu-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-secret-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-driver-storage-1.2.17-13.el7_2.9.x86_64.rpm libvirt-daemon-kvm-1.2.17-13.el7_2.9.x86_64.rpm libvirt-debuginfo-1.2.17-13.el7_2.9.i686.rpm libvirt-debuginfo-1.2.17-13.el7_2.9.x86_64.rpm libvirt-devel-1.2.17-13.el7_2.9.i686.rpm libvirt-devel-1.2.17-13.el7_2.9.x86_64.rpm libvirt-docs-1.2.17-13.el7_2.9.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.2): x86_64: libvirt-daemon-lxc-1.2.17-13.el7_2.9.x86_64.rpm libvirt-debuginfo-1.2.17-13.el7_2.9.x86_64.rpm libvirt-lock-sanlock-1.2.17-13.el7_2.9.x86_64.rpm libvirt-login-shell-1.2.17-13.el7_2.9.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.2): x86_64: libvirt-daemon-lxc-1.2.17-13.el7_2.9.x86_64.rpm libvirt-debuginfo-1.2.17-13.el7_2.9.x86_64.rpm libvirt-lock-sanlock-1.2.17-13.el7_2.9.x86_64.rpm libvirt-login-shell-1.2.17-13.el7_2.9.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.2): x86_64: libvirt-daemon-lxc-1.2.17-13.el7_2.9.x86_64.rpm libvirt-debuginfo-1.2.17-13.el7_2.9.x86_64.rpm libvirt-lock-sanlock-1.2.17-13.el7_2.9.x86_64.rpm libvirt-login-shell-1.2.17-13.el7_2.9.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 https://access.redhat.com/security/vulnerabilities/ssbd 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2018 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBW9iN/9zjgjWX9erEAQjl/g/7Bc0UHYOmM8T1J4PHoe3uOtUXPml1LWNM 1OlRVXbaHA/TK1RWYMBM1iot5ENxX99Hk48+WjxMlxt3q5fL+1Tkurheao8aOCFr n/WAl7kwb9ktlzO56K5TxIu/JExuRRkzrNaQ/c77Z4sSUmqoYh7Vu9dW7hdhO6nh aYGXrSmZBdvprYsGucIEJxgGjdyEuu2xKqkmDvL0ZSoKgyY2/PRy4M0GX9BjQzQU 2pfOyfV3drFeQBu0f4dOp4hVlrA5XpaxO08pziutmWfAj/d20sSapwSXS2Kbe4+i lTQqxrpb6cK+Jgi6NI4GmdqhjhtjGi6B3zvsRtwJMivysDF5uOop8xKWnKNWWaC7 iHyOG6k1mf+ScBblIzi6Dgl18/7Jf9Nj6enIJr4v0PGwGMd59STljPsXK+ZUScwL pCkBh/Dn+zpqpGXu5w0T35ufYKpUc/thiTU68SEPX8CKce4jvSWW8AhbxTvJJTT7 TNpd5VIn6I1PSoWfeSx5P9u9NLm89OhD/3wEyjub6pwm4KSVm0sUX1tmVzBIbDNf IhS1DG8QX7ykHwBw35f02FcCIicJF2vWzZUMPYXcNJAe0/SdXY5Wij+0KeOdLHtP RwDOUe9XeUNJRQSEQhKhauWz8aHFXB1A4NJygLCAv4AUKww46MSJ48bei4OsxwgW IWybsXl0TQs= =SUZ8 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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