-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2018:2392-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:2392 Issue date: 2018-08-14 CVE Names: CVE-2018-3620 CVE-2018-3646 CVE-2018-10901 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 6.6 Advanced Update Support and Red Hat Enterprise Linux 6.6 Telco 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 Server AUS (v. 6.6) - noarch, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 6.6) - x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 6.6) - x86_64 Red Hat Enterprise Linux Server TUS (v. 6.6) - noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimisation) in combination with handling of page-faults caused by terminated virtual to physical address resolving process. As a result, an unprivileged attacker could use this flaw to read privileged memory of the kernel or other processes and/or cross guest/host boundaries to read host memory by conducting targeted cache side-channel attacks. (CVE-2018-3620, CVE-2018-3646) * kernel: kvm: vmx: host GDT limit corruption (CVE-2018-10901) 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. Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting CVE-2018-3620 and CVE-2018-3646 and Vegard Nossum (Oracle Corporation) for reporting CVE-2018-10901. 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 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1585005 - CVE-2018-3646 Kernel: hw: cpu: L1 terminal fault (L1TF) 1601849 - CVE-2018-10901 kernel: kvm: vmx: host GDT limit corruption 6. Package List: Red Hat Enterprise Linux Server AUS (v. 6.6): Source: kernel-2.6.32-504.72.4.el6.src.rpm noarch: kernel-abi-whitelists-2.6.32-504.72.4.el6.noarch.rpm kernel-doc-2.6.32-504.72.4.el6.noarch.rpm kernel-firmware-2.6.32-504.72.4.el6.noarch.rpm x86_64: kernel-2.6.32-504.72.4.el6.x86_64.rpm kernel-debug-2.6.32-504.72.4.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.72.4.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.72.4.el6.x86_64.rpm kernel-devel-2.6.32-504.72.4.el6.x86_64.rpm kernel-headers-2.6.32-504.72.4.el6.x86_64.rpm perf-2.6.32-504.72.4.el6.x86_64.rpm perf-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 6.6): Source: kernel-2.6.32-504.72.4.el6.src.rpm noarch: kernel-abi-whitelists-2.6.32-504.72.4.el6.noarch.rpm kernel-doc-2.6.32-504.72.4.el6.noarch.rpm kernel-firmware-2.6.32-504.72.4.el6.noarch.rpm x86_64: kernel-2.6.32-504.72.4.el6.x86_64.rpm kernel-debug-2.6.32-504.72.4.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.72.4.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.72.4.el6.x86_64.rpm kernel-devel-2.6.32-504.72.4.el6.x86_64.rpm kernel-headers-2.6.32-504.72.4.el6.x86_64.rpm perf-2.6.32-504.72.4.el6.x86_64.rpm perf-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 6.6): x86_64: kernel-debug-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.72.4.el6.x86_64.rpm perf-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm python-perf-2.6.32-504.72.4.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 6.6): x86_64: kernel-debug-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.72.4.el6.x86_64.rpm perf-debuginfo-2.6.32-504.72.4.el6.x86_64.rpm python-perf-2.6.32-504.72.4.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.72.4.el6.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-2018-3620 https://access.redhat.com/security/cve/CVE-2018-3646 https://access.redhat.com/security/cve/CVE-2018-10901 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/L1TF 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 iQIVAwUBW3M40NzjgjWX9erEAQhqpg/7BqGzOqo/HV5E6P+AyRDYlaVqESEDyMbu mLuE1IdmSrC7pRLrv4Qj7r1l15/dO0QKLgNAkSMKxXQW6VO7HlA4QSxRnMkgdnOo IPpQothLp1c57D8fQ2nHTxPiy40KCTREFJ3pqAfRKcd1Y66car6MgJJP5ti68u96 Js8kmbWHvUOjWhpBujPAoqQ8zZZurQg+Swcsed528chlqR1wI5+coXJOzFH7Amcs pbRBi/LlqKckPQjf5QmfF0wl2sVBa2SoluJ15C0aFmL6SJoRErIj1qwmstm0ZuGI g83VQu25yGaVGRUtwUsuSpIKXCE708GDx/mP/df26xcXUdQ+bcobQ9g7pFoCSyxt rkHQeKTeNlbAnBlPDBTKfqOo1Kl7FLfLgnbNypEkcTFwPqWstV0j3R6PDskEPWqz /4fXblk0uZH1hv/KbMQq1ETSr5vJotRHEpI5UW9KaIs7+KD22jFykAdX6KFmO2IF aQQZyj7n20j9opmpJWsblburTFJ6yF722CFRf8e98Bx2tUyiWo79FT59NzmLVRwR OHQovfMyCqX4lldD5vB6tGlB7TwNLPp0GtpKVLcijpDNxBlRTsYSyUEH+S/++9vX MQ+e9zFdhaDNujvDbGSxFkH9uGwP5b6rS+lxlaAJU1dSgDKTuTLjUf+PnZzxZKry eImsQHrkDpc=ZWJd -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce