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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1183 Important: kernel security and bug fix update 13 May 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 UNIX variants (UNIX, Linux, OSX) Impact/Access: Root Compromise -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2016-0758 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2016-1033.html Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running kernel check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2016:1033-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1033.html Issue date: 2016-05-12 CVE Names: CVE-2016-0758 ===================================================================== 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 flaw was found in the way the Linux kernel's ASN.1 DER decoder processed certain certificate files with tags of indefinite length. A local, unprivileged user could use a specially crafted X.509 certificate DER file to crash the system or, potentially, escalate their privileges on the system. (CVE-2016-0758, Important) Red Hat would like to thank Philip Pettersson of Samsung for reporting this issue. Bug Fix(es): * Under certain conditions, the migration threads could race with the CPU hotplug, which could cause a deadlock. A set of patches has been provided to fix this bug, and the deadlock no longer occurs in the system. (BZ#1299338) * A bug in the code that cleans up revoked delegations could previously cause a soft lockup in the NFS server. This patch fixes the underlying source code, so the lockup no longer occurs. (BZ#1311582) * The second attempt to reload Common Application Programming Interface (CAPI) devices on the little-endian variant of IBM Power Systems previously failed. The provided set of patches fixes this bug, and reloading works as intended. (BZ#1312396) * Due to inconsistencies in page size of IOMMU, the NVMe device, and the kernel, the BUG_ON signal previously occurred in the nvme_setup_prps() function, leading to the system crash while setting up the DMA transfer. The provided patch sets the default NVMe page size to 4k, thus preventing the system crash. (BZ#1312399) * Previously, on a system using the Infiniband mlx5 driver used for the SRP stack, a hard lockup previously occurred after the kernel exceeded time with lock held with interrupts blocked. As a consequence, the system panicked. This update fixes this bug, and the system no longer panics in this situation. (BZ#1313814) * On the little-endian variant of IBM Power Systems, the kernel previously crashed in the bitmap_weight() function while running the memory affinity script. The provided patch fortifies the topology setup and prevents sd->child from being set to NULL when it is already NULL. As a result, the memory affinity script runs successfully. (BZ#1316158) * When a KVM guest wrote random values to the special-purpose registers (SPR) Instruction Authority Mask Register (IAMR), the guest and the corresponding QEMU process previously hung. This update adds the code which sets SPRs to a suitable neutral value on guest exit, thus fixing this bug. (BZ#1316636) * Under heavy iSCSI traffic load, the system previously panicked due to a race in the locking code leading to a list corruption. This update fixes this bug, and the system no longer panics in this situation. (BZ#1316812) * During SCSI exception handling (triggered by some irregularities), the driver could previously use an already retired SCSI command. As a consequence, a kernel panic or data corruption occurred. The provided patches fix this bug, and exception handling now proceeds successfully. (BZ#1316820) * When the previously opened /dev/tty, which pointed to a pseudo terminal (pty) pair, was the last file closed, a kernel crash could previously occur. The underlying source code has been fixed, preventing this bug. (BZ#1320297) * Previously, when using VPLEX and FCoE via the bnx2fc driver, different degrees of data corruption occurred. The provided patch fixes the FCP Response (RSP) residual parsing in bnx2fc, which prevents the aforementioned corruption. (BZ#1322279) 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/): 1300257 - CVE-2016-0758 kernel: tags with indefinite length can corrupt pointers in asn1_find_indefinite_length() 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kernel-3.10.0-327.18.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.18.2.el7.noarch.rpm kernel-doc-3.10.0-327.18.2.el7.noarch.rpm x86_64: kernel-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.18.2.el7.x86_64.rpm kernel-devel-3.10.0-327.18.2.el7.x86_64.rpm kernel-headers-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.18.2.el7.x86_64.rpm perf-3.10.0-327.18.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm python-perf-3.10.0-327.18.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.18.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: kernel-3.10.0-327.18.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.18.2.el7.noarch.rpm kernel-doc-3.10.0-327.18.2.el7.noarch.rpm x86_64: kernel-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.18.2.el7.x86_64.rpm kernel-devel-3.10.0-327.18.2.el7.x86_64.rpm kernel-headers-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.18.2.el7.x86_64.rpm perf-3.10.0-327.18.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm python-perf-3.10.0-327.18.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.18.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kernel-3.10.0-327.18.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.18.2.el7.noarch.rpm kernel-doc-3.10.0-327.18.2.el7.noarch.rpm ppc64: kernel-3.10.0-327.18.2.el7.ppc64.rpm kernel-bootwrapper-3.10.0-327.18.2.el7.ppc64.rpm kernel-debug-3.10.0-327.18.2.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm kernel-debug-devel-3.10.0-327.18.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-327.18.2.el7.ppc64.rpm kernel-devel-3.10.0-327.18.2.el7.ppc64.rpm kernel-headers-3.10.0-327.18.2.el7.ppc64.rpm kernel-tools-3.10.0-327.18.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm kernel-tools-libs-3.10.0-327.18.2.el7.ppc64.rpm perf-3.10.0-327.18.2.el7.ppc64.rpm perf-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm python-perf-3.10.0-327.18.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm ppc64le: kernel-3.10.0-327.18.2.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-327.18.2.el7.ppc64le.rpm kernel-debug-3.10.0-327.18.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-327.18.2.el7.ppc64le.rpm kernel-devel-3.10.0-327.18.2.el7.ppc64le.rpm kernel-headers-3.10.0-327.18.2.el7.ppc64le.rpm kernel-tools-3.10.0-327.18.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm kernel-tools-libs-3.10.0-327.18.2.el7.ppc64le.rpm perf-3.10.0-327.18.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm python-perf-3.10.0-327.18.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm s390x: kernel-3.10.0-327.18.2.el7.s390x.rpm kernel-debug-3.10.0-327.18.2.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-327.18.2.el7.s390x.rpm kernel-debug-devel-3.10.0-327.18.2.el7.s390x.rpm kernel-debuginfo-3.10.0-327.18.2.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-327.18.2.el7.s390x.rpm kernel-devel-3.10.0-327.18.2.el7.s390x.rpm kernel-headers-3.10.0-327.18.2.el7.s390x.rpm kernel-kdump-3.10.0-327.18.2.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-327.18.2.el7.s390x.rpm kernel-kdump-devel-3.10.0-327.18.2.el7.s390x.rpm perf-3.10.0-327.18.2.el7.s390x.rpm perf-debuginfo-3.10.0-327.18.2.el7.s390x.rpm python-perf-3.10.0-327.18.2.el7.s390x.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.s390x.rpm x86_64: kernel-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.18.2.el7.x86_64.rpm kernel-devel-3.10.0-327.18.2.el7.x86_64.rpm kernel-headers-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.18.2.el7.x86_64.rpm perf-3.10.0-327.18.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm python-perf-3.10.0-327.18.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: kernel-debug-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-327.18.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-327.18.2.el7.ppc64.rpm perf-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm kernel-debug-devel-3.10.0-327.18.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-327.18.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-327.18.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.18.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kernel-3.10.0-327.18.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.18.2.el7.noarch.rpm kernel-doc-3.10.0-327.18.2.el7.noarch.rpm x86_64: kernel-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.18.2.el7.x86_64.rpm kernel-devel-3.10.0-327.18.2.el7.x86_64.rpm kernel-headers-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.18.2.el7.x86_64.rpm perf-3.10.0-327.18.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm python-perf-3.10.0-327.18.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: kernel-debug-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.18.2.el7.x86_64.rpm perf-debuginfo-3.10.0-327.18.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.18.2.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-2016-0758 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 iD8DBQFXNFcgXlSAg2UNWIIRAvt9AJ0fBllps1r1hDISfd2cZNny3Ks8MACfYYKN x3KiAlc6BOBfnnwkrsnheNY= =2l9y - -----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. 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