-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2019:1170-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1170 Issue date: 2019-05-14 CVE Names: CVE-2016-7913 CVE-2016-8633 CVE-2017-11600 CVE-2017-12190 CVE-2017-13215 CVE-2017-16939 CVE-2017-17558 CVE-2017-1000407 CVE-2018-1068 CVE-2018-3665 CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2018-18559 CVE-2019-11091 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.4 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 ComputeNode EUS (v. 7.4) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.4) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.4) - ppc64, ppc64le, 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 implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130) * Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126) * Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127) * Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091) * kernel: Buffer overflow in firewire driver via crafted incoming packets (CVE-2016-8633) * kernel: crypto: privilege escalation in skcipher_recvmsg function (CVE-2017-13215) * Kernel: ipsec: xfrm: use-after-free leading to potential privilege escalation (CVE-2017-16939) * kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c (CVE-2018-1068) * kernel: Use-after-free due to race condition in AF_PACKET implementation (CVE-2018-18559) * kernel: media: use-after-free in [tuner-xc2028] media driver (CVE-2016-7913) * kernel: Out-of-bounds access via an XFRM_MSG_MIGRATE xfrm Netlink message (CVE-2017-11600) * kernel: memory leak when merging buffers in SCSI IO vectors (CVE-2017-12190) * kernel: Unallocated memory access by malicious USB device via bNumInterfaces overflow (CVE-2017-17558) * Kernel: KVM: DoS via write flood to I/O port 0x80 (CVE-2017-1000407) * Kernel: FPU state information leakage via lazy FPU restore (CVE-2018-3665) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * rwsem in inconsistent state leading system to hung (BZ#1690321) * efi_bgrt_init fails to ioremap error during boot (BZ#1692284) 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/): 1391490 - CVE-2016-8633 kernel: Buffer overflow in firewire driver via crafted incoming packets 1402885 - CVE-2016-7913 kernel: media: use-after-free in [tuner-xc2028] media driver 1474928 - CVE-2017-11600 kernel: Out-of-bounds access via an XFRM_MSG_MIGRATE xfrm Netlink message 1495089 - CVE-2017-12190 kernel: memory leak when merging buffers in SCSI IO vectors 1517220 - CVE-2017-16939 Kernel: ipsec: xfrm: use-after-free leading to potential privilege escalation 1520328 - CVE-2017-1000407 Kernel: KVM: DoS via write flood to I/O port 0x80 1525474 - CVE-2017-17558 kernel: Unallocated memory access by malicious USB device via bNumInterfaces overflow 1535173 - CVE-2017-13215 kernel: crypto: privilege escalation in skcipher_recvmsg function 1552048 - CVE-2018-1068 kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c 1585011 - CVE-2018-3665 Kernel: FPU state information leakage via lazy FPU restore 1641878 - CVE-2018-18559 kernel: Use-after-free due to race condition in AF_PACKET implementation 1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS) 1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) 1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS) 1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM) 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.4): Source: kernel-3.10.0-693.47.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.47.2.el7.noarch.rpm kernel-doc-3.10.0-693.47.2.el7.noarch.rpm x86_64: kernel-3.10.0-693.47.2.el7.x86_64.rpm kernel-debug-3.10.0-693.47.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.47.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.47.2.el7.x86_64.rpm kernel-devel-3.10.0-693.47.2.el7.x86_64.rpm kernel-headers-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.47.2.el7.x86_64.rpm perf-3.10.0-693.47.2.el7.x86_64.rpm perf-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm python-perf-3.10.0-693.47.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4): x86_64: kernel-debug-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.47.2.el7.x86_64.rpm perf-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.4): Source: kernel-3.10.0-693.47.2.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.47.2.el7.noarch.rpm kernel-doc-3.10.0-693.47.2.el7.noarch.rpm ppc64: kernel-3.10.0-693.47.2.el7.ppc64.rpm kernel-bootwrapper-3.10.0-693.47.2.el7.ppc64.rpm kernel-debug-3.10.0-693.47.2.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm kernel-debug-devel-3.10.0-693.47.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.47.2.el7.ppc64.rpm kernel-devel-3.10.0-693.47.2.el7.ppc64.rpm kernel-headers-3.10.0-693.47.2.el7.ppc64.rpm kernel-tools-3.10.0-693.47.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm kernel-tools-libs-3.10.0-693.47.2.el7.ppc64.rpm perf-3.10.0-693.47.2.el7.ppc64.rpm perf-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm python-perf-3.10.0-693.47.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm ppc64le: kernel-3.10.0-693.47.2.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-693.47.2.el7.ppc64le.rpm kernel-debug-3.10.0-693.47.2.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.47.2.el7.ppc64le.rpm kernel-devel-3.10.0-693.47.2.el7.ppc64le.rpm kernel-headers-3.10.0-693.47.2.el7.ppc64le.rpm kernel-tools-3.10.0-693.47.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm kernel-tools-libs-3.10.0-693.47.2.el7.ppc64le.rpm perf-3.10.0-693.47.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm python-perf-3.10.0-693.47.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm s390x: kernel-3.10.0-693.47.2.el7.s390x.rpm kernel-debug-3.10.0-693.47.2.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-693.47.2.el7.s390x.rpm kernel-debug-devel-3.10.0-693.47.2.el7.s390x.rpm kernel-debuginfo-3.10.0-693.47.2.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-693.47.2.el7.s390x.rpm kernel-devel-3.10.0-693.47.2.el7.s390x.rpm kernel-headers-3.10.0-693.47.2.el7.s390x.rpm kernel-kdump-3.10.0-693.47.2.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-693.47.2.el7.s390x.rpm kernel-kdump-devel-3.10.0-693.47.2.el7.s390x.rpm perf-3.10.0-693.47.2.el7.s390x.rpm perf-debuginfo-3.10.0-693.47.2.el7.s390x.rpm python-perf-3.10.0-693.47.2.el7.s390x.rpm python-perf-debuginfo-3.10.0-693.47.2.el7.s390x.rpm x86_64: kernel-3.10.0-693.47.2.el7.x86_64.rpm kernel-debug-3.10.0-693.47.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.47.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.47.2.el7.x86_64.rpm kernel-devel-3.10.0-693.47.2.el7.x86_64.rpm kernel-headers-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.47.2.el7.x86_64.rpm perf-3.10.0-693.47.2.el7.x86_64.rpm perf-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm python-perf-3.10.0-693.47.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.4): ppc64: kernel-debug-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.47.2.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-693.47.2.el7.ppc64.rpm perf-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.47.2.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm kernel-debug-devel-3.10.0-693.47.2.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.47.2.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-693.47.2.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.47.2.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.47.2.el7.x86_64.rpm perf-debuginfo-3.10.0-693.47.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.47.2.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-2016-7913 https://access.redhat.com/security/cve/CVE-2016-8633 https://access.redhat.com/security/cve/CVE-2017-11600 https://access.redhat.com/security/cve/CVE-2017-12190 https://access.redhat.com/security/cve/CVE-2017-13215 https://access.redhat.com/security/cve/CVE-2017-16939 https://access.redhat.com/security/cve/CVE-2017-17558 https://access.redhat.com/security/cve/CVE-2017-1000407 https://access.redhat.com/security/cve/CVE-2018-1068 https://access.redhat.com/security/cve/CVE-2018-3665 https://access.redhat.com/security/cve/CVE-2018-12126 https://access.redhat.com/security/cve/CVE-2018-12127 https://access.redhat.com/security/cve/CVE-2018-12130 https://access.redhat.com/security/cve/CVE-2018-18559 https://access.redhat.com/security/cve/CVE-2019-11091 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/mds 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXNsSadzjgjWX9erEAQgP9w//UOww3aPtqTYiBUzHHXgpOdxbU3bUjQo9 AL+l/A6WPXAz/RJpSMuxliNuRj9MXSZCHqn1cnalTIZfJGh58wIZEi3Nh/NYbHDd b4HFEy2CoaFJ24aiLC+hheslmgsXLxyx334lrNq+o/t48KKC5dfuOSta+g9+y6XG 7SugZR/GCgZUj0DdLaEmCdLcla9unxiegRACUgMatTzZQTI3h/nQWkRF5D0Vwq+g hz/5+p5HCUJTr9n/5el5Q12AipHkzVjakiGbjK1NCoPiRVHRKo+no0tRQsx+a0kN H/vL2QevSYv2RGNrtKX0irAMmQvccaaapvX3rDR/7Pyk+QdZz2d8SbPIec5xsvm3 52g+jqL/gQKP4dNch37LVfCiNPHt/IjEBHjy2dES6Q2uXPdL6OjT1++ygN96l3yu bJeNcbBVDxLoZR8w7yrNoRDjR06y2fo7Q8Gvw/BjyXe7Ka/gNGBujHroAvgQVGPi K92PQlnnKzTwzkQ0G6i/klPzyh07yqmH/vpygphFUcHztiLCQ26DpPamc0PFwXAs URu1erbnWsl4HPlvzu3vMIdZEkwN8CUr1rj9a140N05+jhjhDqXb+gzq+DpSYhR3 T4W8Vq9CFczOm0wY4VojDEyPQuHuheg49lzshwnr65r77vWWNfZlo6BwmK/uRT8d mS+Mf+im58s= =ebla -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce