-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2018:2602-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:2602 Issue date: 2018-08-29 CVE Names: CVE-2018-3620 CVE-2018-3646 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 5 Extended Lifecycle 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 (v. 5 ELS) - i386, noarch, s390x, 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 optimization) 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. 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-2018-3620 CVE-2018-3646 Kernel: hw: cpu: L1 terminal fault (L1TF) 6. Package List: Red Hat Enterprise Linux Server (v. 5 ELS): Source: kernel-2.6.18-434.el5.src.rpm i386: kernel-2.6.18-434.el5.i686.rpm kernel-PAE-2.6.18-434.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-434.el5.i686.rpm kernel-PAE-devel-2.6.18-434.el5.i686.rpm kernel-debug-2.6.18-434.el5.i686.rpm kernel-debug-debuginfo-2.6.18-434.el5.i686.rpm kernel-debug-devel-2.6.18-434.el5.i686.rpm kernel-debuginfo-2.6.18-434.el5.i686.rpm kernel-debuginfo-common-2.6.18-434.el5.i686.rpm kernel-devel-2.6.18-434.el5.i686.rpm kernel-headers-2.6.18-434.el5.i386.rpm kernel-xen-2.6.18-434.el5.i686.rpm kernel-xen-debuginfo-2.6.18-434.el5.i686.rpm kernel-xen-devel-2.6.18-434.el5.i686.rpm noarch: kernel-doc-2.6.18-434.el5.noarch.rpm s390x: kernel-2.6.18-434.el5.s390x.rpm kernel-debug-2.6.18-434.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-434.el5.s390x.rpm kernel-debug-devel-2.6.18-434.el5.s390x.rpm kernel-debuginfo-2.6.18-434.el5.s390x.rpm kernel-debuginfo-common-2.6.18-434.el5.s390x.rpm kernel-devel-2.6.18-434.el5.s390x.rpm kernel-headers-2.6.18-434.el5.s390x.rpm kernel-kdump-2.6.18-434.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-434.el5.s390x.rpm kernel-kdump-devel-2.6.18-434.el5.s390x.rpm x86_64: kernel-2.6.18-434.el5.x86_64.rpm kernel-debug-2.6.18-434.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-434.el5.x86_64.rpm kernel-debug-devel-2.6.18-434.el5.x86_64.rpm kernel-debuginfo-2.6.18-434.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-434.el5.x86_64.rpm kernel-devel-2.6.18-434.el5.x86_64.rpm kernel-headers-2.6.18-434.el5.x86_64.rpm kernel-xen-2.6.18-434.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-434.el5.x86_64.rpm kernel-xen-devel-2.6.18-434.el5.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 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 iQIVAwUBW4bl89zjgjWX9erEAQj9pQ/8C7p6nQdJOOZJed/nnSnKY/Q/qQbJ7OCJ 8XGQrasq/G1sKDMLLZgn4qsvO7m++/mjbJkwicciWbw4W6exWr13XIF0hStYcGUD YciZMDJhbCT5ZHL3rumrcgdVKGo7Ig5p2cwJHTozV3UAK2jXuv4pH2L/6C9QXSlc DWiNgK63iaGHxmayu1tRnLDoGhNYZUf+cGOCXJsNGtMeLuK19DdpFmqmNtkaEo0Z OSsI53cxtVP48bVsnHJn8fMeih8Bn6/v5NQ408LXf4zGgHg7p0rFWVPQhVQbiPjC tFOjT6/Jg5w36J3lBky6tEXkK7CNfxsHPQ5jJ/9PsigyruHQJfbA2A9St1o6WBYs LtSw3P47POSy+w01n07hPump2ejObYBa8Aaja0uV8AykVVrSaB2XBqMs+jtJCvuc OLqUHvqogqFpfg68Vc5Q8G8bPi5W3j2s7BEdDeYc4ykppBVwoyyXj5E29+kQo/8r pvCmzDwfuJY/maFsSchovpW2lBGDz5KtCZKfXCblc/igAnG++iyDB+84r1BPwxoi nsKJF1dZ4EhZP9i13RtmGlMwLhr0+L62oCCq8ErmNBqjQX3rggEddhWej166Hk7T fDgDFrJyTaIticrfrfLQZByZ6CY10qM/GtbHaCQd6pZ8Yq9wQvYXwbpcSn0UeEBc 0wYKoQUCEuQ= =ZBXE -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce