-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2018:2388-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:2388 Issue date: 2018-08-14 CVE Names: CVE-2018-3620 CVE-2018-3646 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.3 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. 7.3) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.3) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.3) - ppc64, ppc64le, 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) Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting these issues. Bug Fix(es): * Due to a bug in a CPU's speculative execution engine, the CPU could previously leak data from other processes on the system, including passwords, encryption keys, or other sensitive information. With this update, the kernel build requirements have been updated to the GNU Compiler Collection (GCC) compiler version that has the support for Expoline for IBM z Systems. As a result, data leak no longer occurs under the described circumstances. (BZ#1577761) 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) 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.3): Source: kernel-3.10.0-514.55.4.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.55.4.el7.noarch.rpm kernel-doc-3.10.0-514.55.4.el7.noarch.rpm x86_64: kernel-3.10.0-514.55.4.el7.x86_64.rpm kernel-debug-3.10.0-514.55.4.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.55.4.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.55.4.el7.x86_64.rpm kernel-devel-3.10.0-514.55.4.el7.x86_64.rpm kernel-headers-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.55.4.el7.x86_64.rpm perf-3.10.0-514.55.4.el7.x86_64.rpm perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm python-perf-3.10.0-514.55.4.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3): x86_64: kernel-debug-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.55.4.el7.x86_64.rpm perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.3): Source: kernel-3.10.0-514.55.4.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.55.4.el7.noarch.rpm kernel-doc-3.10.0-514.55.4.el7.noarch.rpm ppc64: kernel-3.10.0-514.55.4.el7.ppc64.rpm kernel-bootwrapper-3.10.0-514.55.4.el7.ppc64.rpm kernel-debug-3.10.0-514.55.4.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm kernel-debug-devel-3.10.0-514.55.4.el7.ppc64.rpm kernel-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-514.55.4.el7.ppc64.rpm kernel-devel-3.10.0-514.55.4.el7.ppc64.rpm kernel-headers-3.10.0-514.55.4.el7.ppc64.rpm kernel-tools-3.10.0-514.55.4.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm kernel-tools-libs-3.10.0-514.55.4.el7.ppc64.rpm perf-3.10.0-514.55.4.el7.ppc64.rpm perf-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm python-perf-3.10.0-514.55.4.el7.ppc64.rpm python-perf-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm ppc64le: kernel-3.10.0-514.55.4.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-514.55.4.el7.ppc64le.rpm kernel-debug-3.10.0-514.55.4.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm kernel-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-514.55.4.el7.ppc64le.rpm kernel-devel-3.10.0-514.55.4.el7.ppc64le.rpm kernel-headers-3.10.0-514.55.4.el7.ppc64le.rpm kernel-tools-3.10.0-514.55.4.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm kernel-tools-libs-3.10.0-514.55.4.el7.ppc64le.rpm perf-3.10.0-514.55.4.el7.ppc64le.rpm perf-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm python-perf-3.10.0-514.55.4.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm s390x: kernel-3.10.0-514.55.4.el7.s390x.rpm kernel-debug-3.10.0-514.55.4.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-514.55.4.el7.s390x.rpm kernel-debug-devel-3.10.0-514.55.4.el7.s390x.rpm kernel-debuginfo-3.10.0-514.55.4.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-514.55.4.el7.s390x.rpm kernel-devel-3.10.0-514.55.4.el7.s390x.rpm kernel-headers-3.10.0-514.55.4.el7.s390x.rpm kernel-kdump-3.10.0-514.55.4.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-514.55.4.el7.s390x.rpm kernel-kdump-devel-3.10.0-514.55.4.el7.s390x.rpm perf-3.10.0-514.55.4.el7.s390x.rpm perf-debuginfo-3.10.0-514.55.4.el7.s390x.rpm python-perf-3.10.0-514.55.4.el7.s390x.rpm python-perf-debuginfo-3.10.0-514.55.4.el7.s390x.rpm x86_64: kernel-3.10.0-514.55.4.el7.x86_64.rpm kernel-debug-3.10.0-514.55.4.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.55.4.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.55.4.el7.x86_64.rpm kernel-devel-3.10.0-514.55.4.el7.x86_64.rpm kernel-headers-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.55.4.el7.x86_64.rpm perf-3.10.0-514.55.4.el7.x86_64.rpm perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm python-perf-3.10.0-514.55.4.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.3): ppc64: kernel-debug-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm kernel-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-514.55.4.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-514.55.4.el7.ppc64.rpm perf-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm python-perf-debuginfo-3.10.0-514.55.4.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm kernel-debug-devel-3.10.0-514.55.4.el7.ppc64le.rpm kernel-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-514.55.4.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-514.55.4.el7.ppc64le.rpm perf-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-514.55.4.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.55.4.el7.x86_64.rpm perf-debuginfo-3.10.0-514.55.4.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.55.4.el7.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/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 iQIVAwUBW3M2a9zjgjWX9erEAQhIdg/+NfqVdGAV0crhxxJJemSCe+3vA4gO+VNp +3tnYx4aH06Dk3iBT9fCFdgwReW6oC2ne/FH6lSPnN+mSfVEdy26DQe8HFN90ijf uhodLT1kKDFBOEm/skK3v1in68fB2tZZtIHXRvnnGaKQK47uk1scDTpnlPsPyPbu W1eN2109tJqvES2sST1m6h7uNsY/LQ/w8sGJZqBLNgOoZ6Ld4iM5eUT7eZK/Crfn jnHG287QUVpnqKlgjD/Z775YiuZ0tq0HrwLEp3jFprQLCTi4b4WPzwt7E6A4CSW5 p2p5x6NLu9SiG1WndC5ekjAYXsoMoXvzLoDvQZ990G2beynYqLIDG2QfnSjH7ZTc n9fl4K81GoxuZSnDQ9miuqoAj6TQFED1Q/rIpP69JhpgXnwgc2yZI6aLOU9idT4n pZWrMFUf+q3uFAZlaMc80UnyrhYruCfLEtEWhDaCPtsfHOnI8E7NGhjbUkptYAMh AexSnzpOq62ycsfPDpyyzk57uqtrObn9hWbEDvE77/HrSuqdiUUcgvvc5oJKNRfp 6Y/BH0l6Ck37HmckeaZap9CS2g9rIqdYA2j/reeaM+6ePcq7kecg+UaIWbg1UO8B 6/ADygUSM52pVJvh0Jn1WcEHCeJofslMJVxu9O186UvHqUmgl3cNsr1lpDZFEhQT iIx+3ZUY750=JOAW -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce