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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2006 Important: kernel security and bug fix update 22 August 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Root Compromise -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2016-4565 Reference: ESB-2016.1976 ESB-2016.1932 ESB-2016.1818 ESB-2016.1725 ESB-2016.1606 ESB-2016.1587 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2016-1640.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2016:1640-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1640.html Issue date: 2016-08-19 CVE Names: CVE-2016-4565 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 6.6 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 HPC Node EUS (v. 6.6) - noarch, x86_64 Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) - x86_64 Red Hat Enterprise Linux Server EUS (v. 6.6) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 6.6) - i386, ppc64, s390x, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * A flaw was found in the way certain interfaces of the Linux kernel's Infiniband subsystem used write() as bi-directional ioctl() replacement, which could lead to insufficient memory security checks when being invoked using the splice() system call. A local unprivileged user on a system with either Infiniband hardware present or RDMA Userspace Connection Manager Access module explicitly loaded, could use this flaw to escalate their privileges on the system. (CVE-2016-4565, Important) Red Hat would like to thank Jann Horn for reporting this issue. Bug Fix(es): * After upgrading the kernel, the CPU load average was higher compared to the prior kernel version due to the modification of the scheduler. The provided patchset rolls back the calculation algorithm of the load average to the status of the previous system version, thus resulting in lower values in the same system load. (BZ#1343013) 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/): 1310570 - CVE-2016-4565 kernel: infiniband: Unprivileged process can overwrite kernel memory using rdma_ucm.ko 6. Package List: Red Hat Enterprise Linux HPC Node EUS (v. 6.6): Source: kernel-2.6.32-504.51.1.el6.src.rpm noarch: kernel-abi-whitelists-2.6.32-504.51.1.el6.noarch.rpm kernel-doc-2.6.32-504.51.1.el6.noarch.rpm kernel-firmware-2.6.32-504.51.1.el6.noarch.rpm x86_64: kernel-2.6.32-504.51.1.el6.x86_64.rpm kernel-debug-2.6.32-504.51.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.51.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.51.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.51.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.51.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-504.51.1.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-504.51.1.el6.x86_64.rpm kernel-devel-2.6.32-504.51.1.el6.x86_64.rpm kernel-headers-2.6.32-504.51.1.el6.x86_64.rpm perf-2.6.32-504.51.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.51.1.el6.i686.rpm perf-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6): x86_64: kernel-debug-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.51.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm python-perf-2.6.32-504.51.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 6.6): Source: kernel-2.6.32-504.51.1.el6.src.rpm i386: kernel-2.6.32-504.51.1.el6.i686.rpm kernel-debug-2.6.32-504.51.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.51.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.51.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.51.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-504.51.1.el6.i686.rpm kernel-devel-2.6.32-504.51.1.el6.i686.rpm kernel-headers-2.6.32-504.51.1.el6.i686.rpm perf-2.6.32-504.51.1.el6.i686.rpm perf-debuginfo-2.6.32-504.51.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.i686.rpm noarch: kernel-abi-whitelists-2.6.32-504.51.1.el6.noarch.rpm kernel-doc-2.6.32-504.51.1.el6.noarch.rpm kernel-firmware-2.6.32-504.51.1.el6.noarch.rpm ppc64: kernel-2.6.32-504.51.1.el6.ppc64.rpm kernel-bootwrapper-2.6.32-504.51.1.el6.ppc64.rpm kernel-debug-2.6.32-504.51.1.el6.ppc64.rpm kernel-debug-debuginfo-2.6.32-504.51.1.el6.ppc64.rpm kernel-debug-devel-2.6.32-504.51.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-504.51.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-504.51.1.el6.ppc64.rpm kernel-devel-2.6.32-504.51.1.el6.ppc64.rpm kernel-headers-2.6.32-504.51.1.el6.ppc64.rpm perf-2.6.32-504.51.1.el6.ppc64.rpm perf-debuginfo-2.6.32-504.51.1.el6.ppc64.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.ppc64.rpm s390x: kernel-2.6.32-504.51.1.el6.s390x.rpm kernel-debug-2.6.32-504.51.1.el6.s390x.rpm kernel-debug-debuginfo-2.6.32-504.51.1.el6.s390x.rpm kernel-debug-devel-2.6.32-504.51.1.el6.s390x.rpm kernel-debuginfo-2.6.32-504.51.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-504.51.1.el6.s390x.rpm kernel-devel-2.6.32-504.51.1.el6.s390x.rpm kernel-headers-2.6.32-504.51.1.el6.s390x.rpm kernel-kdump-2.6.32-504.51.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-504.51.1.el6.s390x.rpm kernel-kdump-devel-2.6.32-504.51.1.el6.s390x.rpm perf-2.6.32-504.51.1.el6.s390x.rpm perf-debuginfo-2.6.32-504.51.1.el6.s390x.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.s390x.rpm x86_64: kernel-2.6.32-504.51.1.el6.x86_64.rpm kernel-debug-2.6.32-504.51.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.51.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.51.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.51.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.51.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-504.51.1.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-504.51.1.el6.x86_64.rpm kernel-devel-2.6.32-504.51.1.el6.x86_64.rpm kernel-headers-2.6.32-504.51.1.el6.x86_64.rpm perf-2.6.32-504.51.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.51.1.el6.i686.rpm perf-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 6.6): i386: kernel-debug-debuginfo-2.6.32-504.51.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.51.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-504.51.1.el6.i686.rpm perf-debuginfo-2.6.32-504.51.1.el6.i686.rpm python-perf-2.6.32-504.51.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.i686.rpm ppc64: kernel-debug-debuginfo-2.6.32-504.51.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-504.51.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-504.51.1.el6.ppc64.rpm perf-debuginfo-2.6.32-504.51.1.el6.ppc64.rpm python-perf-2.6.32-504.51.1.el6.ppc64.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.ppc64.rpm s390x: kernel-debug-debuginfo-2.6.32-504.51.1.el6.s390x.rpm kernel-debuginfo-2.6.32-504.51.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-504.51.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-504.51.1.el6.s390x.rpm perf-debuginfo-2.6.32-504.51.1.el6.s390x.rpm python-perf-2.6.32-504.51.1.el6.s390x.rpm python-perf-debuginfo-2.6.32-504.51.1.el6.s390x.rpm x86_64: kernel-debug-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.51.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.51.1.el6.x86_64.rpm python-perf-2.6.32-504.51.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.51.1.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-2016-4565 https://access.redhat.com/security/updates/classification/#important 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 iD8DBQFXtvWxXlSAg2UNWIIRAm7fAJ4/j9Lpe1XAri8rfZ5iWBHHyHWcsQCeKLN1 wJ2ScZ+rZQI32zbEMKCmMr4= =WMne - -----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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBV7o92ox+lLeg9Ub1AQhajBAAqF04HvYpmHqpRgVU/738m1Ne7JeAQmAu bERswfCEN1UvsP3bodY5ctbnK0FVQh6vx2HHLuaa3yxlRH9p8mq9oMHlCIREBKwu BfEbwMPV0c7MEmLZOX2KWXv9qSL51dFSqtDUaSD3+2CG/AiqpnwlMLlvSxglH/dW oNKZ+WtsLQf+nz0b5qJXprTly7NqNK+shX4R1+YT4YXB7OJXKkcCJkZZLr1QXvLk wlUy5bDjI8EI0s1LpJB2Ys8DHIcpSwDnkS7z83PjkGavdA21OSOuu6hbUWAtWbjb GP3KgYyy9a4gJvbtn3WsptxemCcCccFVVASJ67+B25geh7IiT0tHkn5+tAsp14hi unA3qpoFM55Zww2Dv+XiP6YXMEaVt3DWOscVplJHaanDMYOOh2xjNVHWv9+EDnrQ bOwDd4N/jIaW1LN+PFHxzAAPv+jq37naQJd7pafzfxRXhfY8YwQDPgoO0VXOAtwI A3vIULRaRdsuInj3RzZbQL6qiBIM22OLmreCn/Yn0/3q50XgRechG1WxKnO0/p1d zAXHkywaacvDUaMSWglNobwYaHtVqO4M5+z5xipK1hErIIE/TaTJObF4ovL9krfM IDe10LpT+N0sdXoBFBrVNjLLNdT8yyeXovECP3SzBgqxiMFmwnJ+o2tDInxXIPXq p2q4lBgjKV0= =1ynR -----END PGP SIGNATURE-----