-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2018:1129-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:1129 Issue date: 2018-04-17 ===================================================================== 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): * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization). There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant CVE-2017-5754 relies on the fact that, on impacted microprocessors, during speculative execution of instruction permission faults, exception generation triggered by a faulting access is suppressed until the retirement of the whole instruction block. In a combination with the fact that memory accesses may populate the cache even when the block is being dropped and never committed (executed), an unprivileged local attacker could use this flaw to read privileged (kernel space) memory by conducting targeted cache side-channel attacks. (CVE-2017-5754, Important, KVM for Power) Red Hat would like to thank Google Project Zero for reporting this issue. Bug Fix(es): These updated kernel packages include also numerous bug fixes. Space precludes documenting all of these bug fixes in this advisory. See the bug fix descriptions in the related Knowledge Article: https://access.redhat.com/articles/3413511 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/): 1519781 - CVE-2017-5754 hw: cpu: speculative execution permission faults handling 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.3): Source: kernel-3.10.0-514.48.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.48.1.el7.noarch.rpm kernel-doc-3.10.0-514.48.1.el7.noarch.rpm x86_64: kernel-3.10.0-514.48.1.el7.x86_64.rpm kernel-debug-3.10.0-514.48.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.48.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.48.1.el7.x86_64.rpm kernel-devel-3.10.0-514.48.1.el7.x86_64.rpm kernel-headers-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.48.1.el7.x86_64.rpm perf-3.10.0-514.48.1.el7.x86_64.rpm perf-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm python-perf-3.10.0-514.48.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3): x86_64: kernel-debug-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.48.1.el7.x86_64.rpm perf-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.3): Source: kernel-3.10.0-514.48.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-514.48.1.el7.noarch.rpm kernel-doc-3.10.0-514.48.1.el7.noarch.rpm ppc64: kernel-3.10.0-514.48.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-514.48.1.el7.ppc64.rpm kernel-debug-3.10.0-514.48.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-514.48.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-514.48.1.el7.ppc64.rpm kernel-devel-3.10.0-514.48.1.el7.ppc64.rpm kernel-headers-3.10.0-514.48.1.el7.ppc64.rpm kernel-tools-3.10.0-514.48.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-514.48.1.el7.ppc64.rpm perf-3.10.0-514.48.1.el7.ppc64.rpm perf-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm python-perf-3.10.0-514.48.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm ppc64le: kernel-3.10.0-514.48.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-514.48.1.el7.ppc64le.rpm kernel-debug-3.10.0-514.48.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-514.48.1.el7.ppc64le.rpm kernel-devel-3.10.0-514.48.1.el7.ppc64le.rpm kernel-headers-3.10.0-514.48.1.el7.ppc64le.rpm kernel-tools-3.10.0-514.48.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-514.48.1.el7.ppc64le.rpm perf-3.10.0-514.48.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm python-perf-3.10.0-514.48.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm s390x: kernel-3.10.0-514.48.1.el7.s390x.rpm kernel-debug-3.10.0-514.48.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-514.48.1.el7.s390x.rpm kernel-debug-devel-3.10.0-514.48.1.el7.s390x.rpm kernel-debuginfo-3.10.0-514.48.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-514.48.1.el7.s390x.rpm kernel-devel-3.10.0-514.48.1.el7.s390x.rpm kernel-headers-3.10.0-514.48.1.el7.s390x.rpm kernel-kdump-3.10.0-514.48.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-514.48.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-514.48.1.el7.s390x.rpm perf-3.10.0-514.48.1.el7.s390x.rpm perf-debuginfo-3.10.0-514.48.1.el7.s390x.rpm python-perf-3.10.0-514.48.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-514.48.1.el7.s390x.rpm x86_64: kernel-3.10.0-514.48.1.el7.x86_64.rpm kernel-debug-3.10.0-514.48.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.48.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.48.1.el7.x86_64.rpm kernel-devel-3.10.0-514.48.1.el7.x86_64.rpm kernel-headers-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.48.1.el7.x86_64.rpm perf-3.10.0-514.48.1.el7.x86_64.rpm perf-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm python-perf-3.10.0-514.48.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.3): ppc64: kernel-debug-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-514.48.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-514.48.1.el7.ppc64.rpm perf-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-514.48.1.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-514.48.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-514.48.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-514.48.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-514.48.1.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-514.48.1.el7.x86_64.rpm perf-debuginfo-3.10.0-514.48.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.48.1.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/updates/classification/#important https://access.redhat.com/articles/3413511 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 iD8DBQFa1hQqXlSAg2UNWIIRAk8dAKC6u6HKEtUnwvzjjEuWbQ0UOnwD/QCeKEyP qtQTyflrY8OxwV5LY1epB5Q= =X6N8 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce