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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2551 Important: kernel security and enhancement update 1 November 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Impact/Access: Root Compromise -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2016-5195 CVE-2016-4470 Reference: ASB-2016.0089 ESB-2016.2534 ESB-2016.2518 ESB-2016.2513 ESB-2016.2502 ESB-2016.2501 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2016-2128.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and enhancement update Advisory ID: RHSA-2016:2128-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2128.html Issue date: 2016-10-31 CVE Names: CVE-2016-4470 CVE-2016-5195 ===================================================================== 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 Linux kernel's keyring handling code: the key_reject_and_link() function could be forced to free an arbitrary memory block. An attacker could use this flaw to trigger a use-after-free condition on the system, potentially allowing for privilege escalation. (CVE-2016-4470, Important) * 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 CVE-2016-5195. The CVE-2016-4470 issue was discovered by David Howells (Red Hat). Enhancement(s): * This update fixes a tape write problem by fixing the use of the sas_is_tlr_enabled API in the mpt3sas driver. The driver now checks whether Transport Layer Recovery (TLR) is enabled before enabling the MPI2_SCSIIO_CONTROL_TLR_ON flag. (BZ#1372352) 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/): 1341716 - CVE-2016-4470 kernel: Uninitialized variable in request_key handling causes kernel crash in error handling path 1384344 - CVE-2016-5195 kernel: mm: privilege escalation via MAP_PRIVATE COW breakage 6. Package List: Red Hat Enterprise Linux HPC Node EUS (v. 6.6): Source: kernel-2.6.32-504.54.1.el6.src.rpm noarch: kernel-abi-whitelists-2.6.32-504.54.1.el6.noarch.rpm kernel-doc-2.6.32-504.54.1.el6.noarch.rpm kernel-firmware-2.6.32-504.54.1.el6.noarch.rpm x86_64: kernel-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.54.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-504.54.1.el6.x86_64.rpm kernel-devel-2.6.32-504.54.1.el6.x86_64.rpm kernel-headers-2.6.32-504.54.1.el6.x86_64.rpm perf-2.6.32-504.54.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6): x86_64: kernel-debug-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.54.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm python-perf-2.6.32-504.54.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 6.6): Source: kernel-2.6.32-504.54.1.el6.src.rpm i386: kernel-2.6.32-504.54.1.el6.i686.rpm kernel-debug-2.6.32-504.54.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-504.54.1.el6.i686.rpm kernel-devel-2.6.32-504.54.1.el6.i686.rpm kernel-headers-2.6.32-504.54.1.el6.i686.rpm perf-2.6.32-504.54.1.el6.i686.rpm perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm noarch: kernel-abi-whitelists-2.6.32-504.54.1.el6.noarch.rpm kernel-doc-2.6.32-504.54.1.el6.noarch.rpm kernel-firmware-2.6.32-504.54.1.el6.noarch.rpm ppc64: kernel-2.6.32-504.54.1.el6.ppc64.rpm kernel-bootwrapper-2.6.32-504.54.1.el6.ppc64.rpm kernel-debug-2.6.32-504.54.1.el6.ppc64.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm kernel-debug-devel-2.6.32-504.54.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-504.54.1.el6.ppc64.rpm kernel-devel-2.6.32-504.54.1.el6.ppc64.rpm kernel-headers-2.6.32-504.54.1.el6.ppc64.rpm perf-2.6.32-504.54.1.el6.ppc64.rpm perf-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm s390x: kernel-2.6.32-504.54.1.el6.s390x.rpm kernel-debug-2.6.32-504.54.1.el6.s390x.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-debug-devel-2.6.32-504.54.1.el6.s390x.rpm kernel-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-504.54.1.el6.s390x.rpm kernel-devel-2.6.32-504.54.1.el6.s390x.rpm kernel-headers-2.6.32-504.54.1.el6.s390x.rpm kernel-kdump-2.6.32-504.54.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-kdump-devel-2.6.32-504.54.1.el6.s390x.rpm perf-2.6.32-504.54.1.el6.s390x.rpm perf-debuginfo-2.6.32-504.54.1.el6.s390x.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.s390x.rpm x86_64: kernel-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-504.54.1.el6.i686.rpm kernel-debug-devel-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-504.54.1.el6.x86_64.rpm kernel-devel-2.6.32-504.54.1.el6.x86_64.rpm kernel-headers-2.6.32-504.54.1.el6.x86_64.rpm perf-2.6.32-504.54.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 6.6): i386: kernel-debug-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-2.6.32-504.54.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-504.54.1.el6.i686.rpm perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm python-perf-2.6.32-504.54.1.el6.i686.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.i686.rpm ppc64: kernel-debug-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-504.54.1.el6.ppc64.rpm perf-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm python-perf-2.6.32-504.54.1.el6.ppc64.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.ppc64.rpm s390x: kernel-debug-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-debuginfo-2.6.32-504.54.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-504.54.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-504.54.1.el6.s390x.rpm perf-debuginfo-2.6.32-504.54.1.el6.s390x.rpm python-perf-2.6.32-504.54.1.el6.s390x.rpm python-perf-debuginfo-2.6.32-504.54.1.el6.s390x.rpm x86_64: kernel-debug-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-504.54.1.el6.x86_64.rpm perf-debuginfo-2.6.32-504.54.1.el6.x86_64.rpm python-perf-2.6.32-504.54.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-504.54.1.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-2016-4470 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 iD8DBQFYF2w0XlSAg2UNWIIRAs1OAJ4h8FSGzSaeomKDN+fI/36nv67vrACfUcEU 2ROTnOK9MbVf58A3skQGi2k= =2ew+ - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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