-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2018:2171-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:2171 Issue date: 2018-07-11 CVE Names: CVE-2018-3639 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 5.9 Long Life. 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 Long Life (v. 5.9 server) - i386, ia64, noarch, 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 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) 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 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1566890 - CVE-2018-3639 hw: cpu: speculative store bypass 6. Package List: Red Hat Enterprise Linux Long Life (v. 5.9 server): Source: kernel-2.6.18-348.40.1.el5.src.rpm i386: kernel-2.6.18-348.40.1.el5.i686.rpm kernel-PAE-2.6.18-348.40.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-348.40.1.el5.i686.rpm kernel-PAE-devel-2.6.18-348.40.1.el5.i686.rpm kernel-debug-2.6.18-348.40.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-348.40.1.el5.i686.rpm kernel-debug-devel-2.6.18-348.40.1.el5.i686.rpm kernel-debuginfo-2.6.18-348.40.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-348.40.1.el5.i686.rpm kernel-devel-2.6.18-348.40.1.el5.i686.rpm kernel-headers-2.6.18-348.40.1.el5.i386.rpm kernel-xen-2.6.18-348.40.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-348.40.1.el5.i686.rpm kernel-xen-devel-2.6.18-348.40.1.el5.i686.rpm ia64: kernel-2.6.18-348.40.1.el5.ia64.rpm kernel-debug-2.6.18-348.40.1.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-348.40.1.el5.ia64.rpm kernel-debug-devel-2.6.18-348.40.1.el5.ia64.rpm kernel-debuginfo-2.6.18-348.40.1.el5.ia64.rpm kernel-debuginfo-common-2.6.18-348.40.1.el5.ia64.rpm kernel-devel-2.6.18-348.40.1.el5.ia64.rpm kernel-headers-2.6.18-348.40.1.el5.ia64.rpm kernel-xen-2.6.18-348.40.1.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-348.40.1.el5.ia64.rpm kernel-xen-devel-2.6.18-348.40.1.el5.ia64.rpm noarch: kernel-doc-2.6.18-348.40.1.el5.noarch.rpm x86_64: kernel-2.6.18-348.40.1.el5.x86_64.rpm kernel-debug-2.6.18-348.40.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-348.40.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-348.40.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-348.40.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-348.40.1.el5.x86_64.rpm kernel-devel-2.6.18-348.40.1.el5.x86_64.rpm kernel-headers-2.6.18-348.40.1.el5.x86_64.rpm kernel-xen-2.6.18-348.40.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-348.40.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-348.40.1.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-2018-3639 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/ssbd 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 iQIVAwUBW0Yk39zjgjWX9erEAQjRYA/+MBsMtTamzbvm0LwtNeGVxXffJUtnP1/E e4Mbp4DfkP7fru3TVgyQpd1TUC8NmBXvUrpAcJSJZGmx6erzG09lCye8XETFTmmH xdclCtZ3y7U/1vpMS4cg0Nywj3seRByABiCMcMrAETuguyZOeom1Cqp0QWM8i1wi OMK+xCXu/c+OzvhT5cvVwhXdJdQbK3XIom0jfCnt5wUflDsCoC9cDHyD7xiXybIC ItF3gGtVhP0mgEbun5QIu8cHve+2ZjQxwCC+KISX7VfVsYqLfGn4c5VNw48iY1yM Rg9HWn7OB90X/4BXyv0LAte+52DlG+xbg9hD+VXRCPfTytI9jB/u1S2INMDGS98O YhtrjAWwL1QwMUuX1evRQinLwua1FJgr5uWJyy7vPb230f08OzMmYT5dxhFhbZBL z9Ng5MPAmkT9eNoeaIFf2xpW4gBW5lBLrA+Eh93LT5wKX3pUtChuM2uayfXCIOLU vZr7uL2Y1cl9Fp1Z4njNTe+IhUaDUG+VQ6eGR9KZnRiNQJ0aM4N0Gp1QXNOh3f97 VesV9LaFJomgJ7wjzXLSaI0kK98PEbmerF0lAn6sxG2sAUHSjzcuh/orGYbDYymz 0dpU7+AiY8Xi3sBHfYkq2WUnyo5FMLgEidUWs4giZh563RaHj5wiQC/QILouxv7R YplwxvnlwN8=RQlx -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce