-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security, bug fix, and enhancement update Advisory ID: RHSA-2019:1946-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1946 Issue date: 2019-07-30 CVE Names: CVE-2017-12154 CVE-2017-15129 CVE-2017-15274 CVE-2018-3693 CVE-2018-14633 ===================================================================== 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): * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions past bounds check. The flaw relies on the presence of a precisely-defined instruction sequence in the privileged code and the fact that memory writes occur to an address which depends on the untrusted value. Such writes cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to influence speculative execution and/or read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3693) * Kernel: kvm: nVMX: L2 guest could access hardware(L0) CR8 register (CVE-2017-12154) * kernel: net: double-free and memory corruption in get_net_ns_by_id() (CVE-2017-15129) * kernel: dereferencing NULL payload with nonzero length (CVE-2017-15274) * kernel: stack-based buffer overflow in chap_server_compute_md5() in iscsi target (CVE-2018-14633) 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): * ovl_create can return positive retval and crash the host (BZ#1696290) * THP: Race between MADV_DONTNEED and NUMA hinting node migration code (BZ#1698105) * RHEL7.6 - Kernel changes for count cache flush Spectre v2 mitigation (BZ#1708543) * Poor system performance from thundering herd of kworkers competing for mddev->flush_bio ownership (BZ#1712762) * [RHEL7.7] RAID1 `write-behind` causes a kernel panic (BZ#1712999) Enhancement(s): * [Intel 7.5 FEAT] i40evf - Update to latest upstream driver version (BZ#1722774) * [netdrv] i40e/i40evf: Fix use after free in Rx cleanup path [7.4.z] (BZ#1723831) Users of kernel are advised to upgrade to these updated packages, which fix these bugs and add these enhancements. 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/): 1491224 - CVE-2017-12154 Kernel: kvm: nVMX: L2 guest could access hardware(L0) CR8 register 1500391 - CVE-2017-15274 kernel: dereferencing NULL payload with nonzero length 1531174 - CVE-2017-15129 kernel: net: double-free and memory corruption in get_net_ns_by_id() 1581650 - CVE-2018-3693 Kernel: speculative bounds check bypass store 1626035 - CVE-2018-14633 kernel: stack-based buffer overflow in chap_server_compute_md5() in iscsi target 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.4): Source: kernel-3.10.0-693.55.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.55.1.el7.noarch.rpm kernel-doc-3.10.0-693.55.1.el7.noarch.rpm x86_64: kernel-3.10.0-693.55.1.el7.x86_64.rpm kernel-debug-3.10.0-693.55.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.55.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.55.1.el7.x86_64.rpm kernel-devel-3.10.0-693.55.1.el7.x86_64.rpm kernel-headers-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.55.1.el7.x86_64.rpm perf-3.10.0-693.55.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm python-perf-3.10.0-693.55.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4): x86_64: kernel-debug-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.55.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.4): Source: kernel-3.10.0-693.55.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.55.1.el7.noarch.rpm kernel-doc-3.10.0-693.55.1.el7.noarch.rpm ppc64: kernel-3.10.0-693.55.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-693.55.1.el7.ppc64.rpm kernel-debug-3.10.0-693.55.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-693.55.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.55.1.el7.ppc64.rpm kernel-devel-3.10.0-693.55.1.el7.ppc64.rpm kernel-headers-3.10.0-693.55.1.el7.ppc64.rpm kernel-tools-3.10.0-693.55.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-693.55.1.el7.ppc64.rpm perf-3.10.0-693.55.1.el7.ppc64.rpm perf-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm python-perf-3.10.0-693.55.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm ppc64le: kernel-3.10.0-693.55.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-693.55.1.el7.ppc64le.rpm kernel-debug-3.10.0-693.55.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.55.1.el7.ppc64le.rpm kernel-devel-3.10.0-693.55.1.el7.ppc64le.rpm kernel-headers-3.10.0-693.55.1.el7.ppc64le.rpm kernel-tools-3.10.0-693.55.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-693.55.1.el7.ppc64le.rpm perf-3.10.0-693.55.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm python-perf-3.10.0-693.55.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm s390x: kernel-3.10.0-693.55.1.el7.s390x.rpm kernel-debug-3.10.0-693.55.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-693.55.1.el7.s390x.rpm kernel-debug-devel-3.10.0-693.55.1.el7.s390x.rpm kernel-debuginfo-3.10.0-693.55.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-693.55.1.el7.s390x.rpm kernel-devel-3.10.0-693.55.1.el7.s390x.rpm kernel-headers-3.10.0-693.55.1.el7.s390x.rpm kernel-kdump-3.10.0-693.55.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-693.55.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-693.55.1.el7.s390x.rpm perf-3.10.0-693.55.1.el7.s390x.rpm perf-debuginfo-3.10.0-693.55.1.el7.s390x.rpm python-perf-3.10.0-693.55.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-693.55.1.el7.s390x.rpm x86_64: kernel-3.10.0-693.55.1.el7.x86_64.rpm kernel-debug-3.10.0-693.55.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.55.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.55.1.el7.x86_64.rpm kernel-devel-3.10.0-693.55.1.el7.x86_64.rpm kernel-headers-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.55.1.el7.x86_64.rpm perf-3.10.0-693.55.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm python-perf-3.10.0-693.55.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.4): ppc64: kernel-debug-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.55.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-693.55.1.el7.ppc64.rpm perf-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.55.1.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-693.55.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.55.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-693.55.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.55.1.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.55.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.55.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.55.1.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-2017-12154 https://access.redhat.com/security/cve/CVE-2017-15129 https://access.redhat.com/security/cve/CVE-2017-15274 https://access.redhat.com/security/cve/CVE-2018-3693 https://access.redhat.com/security/cve/CVE-2018-14633 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/solutions/3523601 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 iQIVAwUBXUAJm9zjgjWX9erEAQicZg/+P0bM/6O4bijjb9uxb6M6bA++7dpodmKR 4laPq1kdOeouIJw6fYUK2BSORi/HYFJ1PUg67mCvomZj3t2VQH9/D58Z6+VbU5G0 +efJxT9DOhhKRP4UVNiJD7QMepbmtDJRzq2/tL2OHaZgXSI4QvJACE9cfPuWrbBU w2x0T0chpsZvNNNCezDt/ccP0eYlQOGd+VId0Tt39tMgGteZhcmuAWrc9NFVxOg0 ja54UP6E0ZhNmAjMbSRPHTRQ8BbGZPtv4kC+ucdJqhXKRb84y3ZviLebzXL3JJ3Q P7WFkNAG7/pvhnDg892QE5lw2cPJ1HMGiUKXnHJeNxIhjRrX9Uppnv9XtNtt0MoZ ZlmrXWmZCriJEj3gBffPxvphBEe4nT3Ymt4+f5AU7OeeMDhwDgQSfBtlMkWBtXuM Tn706hyrXLLc77SNbah1QAJbIlGXj4ClbMqZYrWvnX+jJzyqBIkJad7AWuusAtqH 35RfWHJQ4CGG25QTIiq5udBMQ51CrlZf84UAGwC690PkkIpRK7HTFCxPZj/CrvHj wHTL1qOs2sGo0eibLMeU2hfGw74QgEpIZ9Lr2CX0X/mtYX+M4fJ6dWrtmvDnvg8l dfYyJVJFoCtP/nhzp0XvxQAK8YasDcK9HIO6qiE2eylQbPbM7HWR8HaRq+hFYSqB RzpAU5SM8Vg= =VsF8 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce