Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2262 Important: kernel security update 6 August 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Impact/Access: Access Privileged Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-3639 Reference: ASB-2018.0121 ESB-2018.2207 ESB-2018.2184 ESB-2018.1549 ESB-2018.1548.6 ESB-2018.1545 Original Bulletin: https://access.redhat.com/errata/RHSA-2018:2309 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2018:2309-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:2309 Issue date: 2018-07-31 CVE Names: CVE-2018-3639 ===================================================================== 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): * 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, x86 AMD) 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 Server AUS (v. 6.6): Source: kernel-2.6.32-504.72.1.el6.src.rpm noarch: kernel-abi-whitelists-2.6.32-504.72.1.el6.noarch.rpm kernel-doc-2.6.32-504.72.1.el6.noarch.rpm kernel-firmware-2.6.32-504.72.1.el6.noarch.rpm x86_64: kernel-2.6.32-504.72.1.el6.x86_64.rpm kernel-debug-2.6.32-504.72.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.72.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.72.1.el6.x86_64.rpm kernel-devel-2.6.32-504.72.1.el6.x86_64.rpm kernel-headers-2.6.32-504.72.1.el6.x86_64.rpm perf-2.6.32-504.72.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 6.6): Source: kernel-2.6.32-504.72.1.el6.src.rpm noarch: kernel-abi-whitelists-2.6.32-504.72.1.el6.noarch.rpm kernel-doc-2.6.32-504.72.1.el6.noarch.rpm kernel-firmware-2.6.32-504.72.1.el6.noarch.rpm x86_64: kernel-2.6.32-504.72.1.el6.x86_64.rpm kernel-debug-2.6.32-504.72.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.72.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.72.1.el6.x86_64.rpm kernel-devel-2.6.32-504.72.1.el6.x86_64.rpm kernel-headers-2.6.32-504.72.1.el6.x86_64.rpm perf-2.6.32-504.72.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 6.6): x86_64: kernel-debug-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.72.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm python-perf-2.6.32-504.72.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 6.6): x86_64: kernel-debug-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.72.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.72.1.el6.x86_64.rpm python-perf-2.6.32-504.72.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.72.1.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-2018-3639 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/ssbd 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2018 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBW2Ci9NzjgjWX9erEAQgEoQ/+J5ma8/4G0nW9V97n12ucBW3tKl87rx7v c1nS90WDjKPNQzyO1jbUfo14HiGnEvSjEWm34aZbw3gAvxAkyvtZ7LdLZIao9qLO gbajE9ZIaBYxU+VOPSE1oRKS2TGf0N3AN5CzEYQv6JOOakive6DDXELcnxe1GeFu P35nWizQHt1aAnI8jnfCX99KWX5N2hVF8dFidmkjz0iRCRN6574ewH6UTHeuebOE yL1VSFIRL9SN4mdp2oH9sWpL3/F8xMdhYH9oCBp3WKLWwLSrYlT67U1yQVAbXAye puMpoDhbyWB6jvAxm+4nNkZvxdm10l7kztSMbz59gQchSNW4G5Nzm6x1BL5HZI08 TeqKWrc+VTs52yMOaTVJCA1TYPnxEala02HhI7UoUenbkPebwM/POAvfxLJy4kvY fPCjEPrhXIsOPfl9N2lgi7jdxzXGsnML882k3EG1Ywow3aVlzIQnHOUIDdW5hs6s l/9jOGlGbGdct8EY/Prq0t/ltvflwM7JsMJDvVz/23OCa1qhgPpTYte5W1g3y/ll xi1aqhBzKCdvV1xTlhYaLWK6aFxBh6m7Y57q1gVx0F+p76OqWr6Z1N7ppwrPKWom 3R0RHSIC45al8FR5sig54uzBqFzrjig+QLYUD3F+ykmhwnUMlQOX7QEkw2ZfhCmN BeHcDfgY24o= =rd1U - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBW2eZMGaOgq3Tt24GAQjHUA/+MD1OGJTQGlkLx7nAB7O47xJ1GF+IGdHG 9Cr8seuW5k8ToTB/gPmnocxSBBg1W32K4Ld+Rc/6Ur2Bx/uftJaBX/vBK1POviWg 6QKIBrd/t/K/7ugLyP0fKg3A3fPR7WPnOwKSS3Jzv1gMb46EehZDyWOtmB6LzqZX 8AeRmRH2twTnzTT+FJnuoW5y9/Qc0KioHigaYHMG/pWi3JHErTpeuLgkIr6vvvz5 1/1IM6wrx5wxh7wpzXZ7A0LZx86DiTs33BLeTl07pRBo+jbGkjD8wQtwGgm6dsIY gBTx83GhsCO98Bg8F4H+5R33mxyptQzrwbb4rM7FFNs9fQosBB9jb9NAcmmjAk9C S7Ws/nw+nC/n7XZp/c4ZyxGJCS04qJbhLaipmvBjAcn06nSNxFbsow9LGj2sg62+ +ywmko3Cpp3VEPp7Hlq3T5BeKFGbvO5GoF47d+YXYYH856wNXg69PWDHhKEcGUPu vHqlaDc49RlHQxGgL3GPMwHPK6xOjG+kawl+NV80heo7PpQJOVsFFdlIZ77K2131 aln6clHJvR3TkZxegnwDS7ZT1S/aTQkk//idWN/EEG/++rBMsAtQYJbi1VqB+/kS cWSl5gw3C9TC5dgTUt88EnBNwform+un1lSUXaadMOqMohUkb61YasufIfhVJ9+w CEwuLt2fGrQ= =CROn -----END PGP SIGNATURE-----