Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2473 Important: kernel security update (COW) 25 October 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Root Compromise -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2016-5195 Reference: ESB-2016.2469 ESB-2016.2447 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2016-2098.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2016:2098-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2098.html Issue date: 2016-10-24 CVE Names: CVE-2016-5195 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7. 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 Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings. An unprivileged, local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system. (CVE-2016-5195, Important) Red Hat would like to thank Phil Oester 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/): 1384344 - CVE-2016-5195 kernel: mm: privilege escalation via MAP_PRIVATE COW breakage 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kernel-3.10.0-327.36.3.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.36.3.el7.noarch.rpm kernel-doc-3.10.0-327.36.3.el7.noarch.rpm x86_64: kernel-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.36.3.el7.x86_64.rpm kernel-devel-3.10.0-327.36.3.el7.x86_64.rpm kernel-headers-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.36.3.el7.x86_64.rpm perf-3.10.0-327.36.3.el7.x86_64.rpm perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm python-perf-3.10.0-327.36.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.36.3.el7.x86_64.rpm perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: kernel-3.10.0-327.36.3.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.36.3.el7.noarch.rpm kernel-doc-3.10.0-327.36.3.el7.noarch.rpm x86_64: kernel-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.36.3.el7.x86_64.rpm kernel-devel-3.10.0-327.36.3.el7.x86_64.rpm kernel-headers-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.36.3.el7.x86_64.rpm perf-3.10.0-327.36.3.el7.x86_64.rpm perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm python-perf-3.10.0-327.36.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.36.3.el7.x86_64.rpm perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kernel-3.10.0-327.36.3.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.36.3.el7.noarch.rpm kernel-doc-3.10.0-327.36.3.el7.noarch.rpm ppc64: kernel-3.10.0-327.36.3.el7.ppc64.rpm kernel-bootwrapper-3.10.0-327.36.3.el7.ppc64.rpm kernel-debug-3.10.0-327.36.3.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm kernel-debug-devel-3.10.0-327.36.3.el7.ppc64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-327.36.3.el7.ppc64.rpm kernel-devel-3.10.0-327.36.3.el7.ppc64.rpm kernel-headers-3.10.0-327.36.3.el7.ppc64.rpm kernel-tools-3.10.0-327.36.3.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm kernel-tools-libs-3.10.0-327.36.3.el7.ppc64.rpm perf-3.10.0-327.36.3.el7.ppc64.rpm perf-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm python-perf-3.10.0-327.36.3.el7.ppc64.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm ppc64le: kernel-3.10.0-327.36.3.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-327.36.3.el7.ppc64le.rpm kernel-debug-3.10.0-327.36.3.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm kernel-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-327.36.3.el7.ppc64le.rpm kernel-devel-3.10.0-327.36.3.el7.ppc64le.rpm kernel-headers-3.10.0-327.36.3.el7.ppc64le.rpm kernel-tools-3.10.0-327.36.3.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm kernel-tools-libs-3.10.0-327.36.3.el7.ppc64le.rpm perf-3.10.0-327.36.3.el7.ppc64le.rpm perf-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm python-perf-3.10.0-327.36.3.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm s390x: kernel-3.10.0-327.36.3.el7.s390x.rpm kernel-debug-3.10.0-327.36.3.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-327.36.3.el7.s390x.rpm kernel-debug-devel-3.10.0-327.36.3.el7.s390x.rpm kernel-debuginfo-3.10.0-327.36.3.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-327.36.3.el7.s390x.rpm kernel-devel-3.10.0-327.36.3.el7.s390x.rpm kernel-headers-3.10.0-327.36.3.el7.s390x.rpm kernel-kdump-3.10.0-327.36.3.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-327.36.3.el7.s390x.rpm kernel-kdump-devel-3.10.0-327.36.3.el7.s390x.rpm perf-3.10.0-327.36.3.el7.s390x.rpm perf-debuginfo-3.10.0-327.36.3.el7.s390x.rpm python-perf-3.10.0-327.36.3.el7.s390x.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.s390x.rpm x86_64: kernel-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.36.3.el7.x86_64.rpm kernel-devel-3.10.0-327.36.3.el7.x86_64.rpm kernel-headers-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.36.3.el7.x86_64.rpm perf-3.10.0-327.36.3.el7.x86_64.rpm perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm python-perf-3.10.0-327.36.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: kernel-debug-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-327.36.3.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-327.36.3.el7.ppc64.rpm perf-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm kernel-debug-devel-3.10.0-327.36.3.el7.ppc64le.rpm kernel-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-327.36.3.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-327.36.3.el7.ppc64le.rpm perf-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.36.3.el7.x86_64.rpm perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kernel-3.10.0-327.36.3.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.36.3.el7.noarch.rpm kernel-doc-3.10.0-327.36.3.el7.noarch.rpm x86_64: kernel-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.36.3.el7.x86_64.rpm kernel-devel-3.10.0-327.36.3.el7.x86_64.rpm kernel-headers-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.36.3.el7.x86_64.rpm perf-3.10.0-327.36.3.el7.x86_64.rpm perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm python-perf-3.10.0-327.36.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.36.3.el7.x86_64.rpm perf-debuginfo-3.10.0-327.36.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.36.3.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-2016-5195 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/2706661 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2016 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFYDg9CXlSAg2UNWIIRAjCIAKCfqFMrcCxhrfT5Rb8jZoRBqdTUagCgkFXS If4V2m2AWYozb9GesaZsr5Y= =1J1k - -----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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBWA6gxYx+lLeg9Ub1AQgIeA//bwLnydjLxcVryFlavW6Zp4csDZIsDxG+ f+swzFtEs2N0FIqSKXiqJpA69xd06Ba6nKhyt8tw+EJGHkF9j6639dxCvZIRyUwI MzVWAOrLLOzqs4JkxKJzUjTT1Rsodkjf9dDQmGSXec2eylfu3BnXUksOFyU/sxOF vf6goNXyRtI7uSBkHHDOLjs3Wv0u1Aywaj9Jko0RQe75I12iJk9ZpoxEkIpRpMO6 yNT+Jr00DgLFTOBhOpsQdmh5LBQP2vuzOkxlpAR32LlSzT/Bq/5T/d51QM6vv6Cq Azt/boombK/tE3Q+utWCvuD16zI5GTqiDo7wtypdAqCe4zo1g3vLPOaYiqqwrdZw dF1ZMPMwOrWEOjM5obVUPn98IxoY0Dh+Ev284hAtV4eley7qVh0Et6MtDJsvONCl wsvkFamwygLHTr8o8HwIctyIFJVgKmERGpc+0R0Xj6m56IZwMsZkaFP8h6usMq0B acTeRSfWv03VyrXw7h5AmJQzx5XtHmH9+Nmo2kYz91gXQ1KkBsB3h5yAWzu0OJMS aNuM6aEBl37y8xL8OcvdJ3Uzpx5/ShSHxIirgARXx4hhmMsLAtlN2yFMZVh+alSM hXdKCg2id57HY11kRjzl3kDGrQsZrkT3RjNqAjKqSJcY4LdHAmmWUGw7rKRzORKh VQz8IpEs8ns= =IGe0 -----END PGP SIGNATURE-----