-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-alt security and bug fix update Advisory ID: RHSA-2018:2772-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:2772 Issue date: 2018-09-25 CVE Names: CVE-2017-18202 ===================================================================== 1. Summary: An update for kernel-alt 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 for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le 3. Description: The kernel-alt packages provide the Linux kernel version 4.x. Security Fix(es): * kernel: Infoleak/use-after-free in __oom_reap_task_mm function in mm/oom_kill.c (CVE-2017-18202) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * Previously, on certain little-endian variants of IBM Power Systems, there was no asysfs spec_store_bypassa file. As a consequence, there was no way to indicate the Speculative Store Bypass Disable (SSBD) mitigation status. This update adds infrastructure code into the kernel to create the /sys/devices/system/cpu/vulnerabilities/* files. As a result, sysfs spec_store_bypass shows whether the SSBD mitigation is disabled or enabled. (BZ#1602340) * Previously, the kernel architectures for IBM z Systems were missing support to display the status of the Spectre v2 mitigations. As a consequence, the /sys/devices/system/cpu/vulnerabilities/spectre_v2 file did not exist. With this update, the kernel now shows the status in the above mentioned file and as a result, the file now reports either "Vulnerable" or "Mitigation: execute trampolines" message. (BZ#1619667) 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/): 1549621 - CVE-2017-18202 kernel: Infoleak/use-after-free in __oom_reap_task_mm function in mm/oom_kill.c 6. Package List: Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7): Source: kernel-alt-4.14.0-49.13.1.el7a.src.rpm aarch64: kernel-4.14.0-49.13.1.el7a.aarch64.rpm kernel-debug-4.14.0-49.13.1.el7a.aarch64.rpm kernel-debug-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm kernel-debug-devel-4.14.0-49.13.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-49.13.1.el7a.aarch64.rpm kernel-devel-4.14.0-49.13.1.el7a.aarch64.rpm kernel-headers-4.14.0-49.13.1.el7a.aarch64.rpm kernel-tools-4.14.0-49.13.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm kernel-tools-libs-4.14.0-49.13.1.el7a.aarch64.rpm perf-4.14.0-49.13.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm python-perf-4.14.0-49.13.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm noarch: kernel-abi-whitelists-4.14.0-49.13.1.el7a.noarch.rpm kernel-doc-4.14.0-49.13.1.el7a.noarch.rpm ppc64le: kernel-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-bootwrapper-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-debug-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-debug-debuginfo-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-devel-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-headers-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-tools-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-tools-debuginfo-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-tools-libs-4.14.0-49.13.1.el7a.ppc64le.rpm perf-4.14.0-49.13.1.el7a.ppc64le.rpm perf-debuginfo-4.14.0-49.13.1.el7a.ppc64le.rpm python-perf-4.14.0-49.13.1.el7a.ppc64le.rpm python-perf-debuginfo-4.14.0-49.13.1.el7a.ppc64le.rpm s390x: kernel-4.14.0-49.13.1.el7a.s390x.rpm kernel-debug-4.14.0-49.13.1.el7a.s390x.rpm kernel-debug-debuginfo-4.14.0-49.13.1.el7a.s390x.rpm kernel-debug-devel-4.14.0-49.13.1.el7a.s390x.rpm kernel-debuginfo-4.14.0-49.13.1.el7a.s390x.rpm kernel-debuginfo-common-s390x-4.14.0-49.13.1.el7a.s390x.rpm kernel-devel-4.14.0-49.13.1.el7a.s390x.rpm kernel-headers-4.14.0-49.13.1.el7a.s390x.rpm kernel-kdump-4.14.0-49.13.1.el7a.s390x.rpm kernel-kdump-debuginfo-4.14.0-49.13.1.el7a.s390x.rpm kernel-kdump-devel-4.14.0-49.13.1.el7a.s390x.rpm perf-4.14.0-49.13.1.el7a.s390x.rpm perf-debuginfo-4.14.0-49.13.1.el7a.s390x.rpm python-perf-4.14.0-49.13.1.el7a.s390x.rpm python-perf-debuginfo-4.14.0-49.13.1.el7a.s390x.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7): aarch64: kernel-debug-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-49.13.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm kernel-tools-libs-devel-4.14.0-49.13.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-49.13.1.el7a.aarch64.rpm noarch: kernel-doc-4.14.0-49.13.1.el7a.noarch.rpm ppc64le: kernel-debug-debuginfo-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-debug-devel-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-tools-debuginfo-4.14.0-49.13.1.el7a.ppc64le.rpm kernel-tools-libs-devel-4.14.0-49.13.1.el7a.ppc64le.rpm perf-debuginfo-4.14.0-49.13.1.el7a.ppc64le.rpm python-perf-debuginfo-4.14.0-49.13.1.el7a.ppc64le.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-2017-18202 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/cve/CVE-2017-18202 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2018 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBW6p2qNzjgjWX9erEAQjxBw//XxDF3zQUNelBp5DKipZaZ511Tqb1TKx3 o0+/xPJC9qOVHIEwZauB3QaFrV/aEVwuRAMWHtua2GPz4qcVLXDJX8RM4TAhWuSM G0vNRH3g9Q5DEZztRVK4oQbWSA1owuYmTyCAwWbFBV2JXRa0lCo0KFK9kNbUY2AY 2pupppjkkMfSDuRTFmbEP6w2aSFajKpQo+ShFk16mYt9ehtqOZih6347vn548Doq 0s4md/gIROJI2VjBHR7OjWVQ+uy1MuRECf5TIWVQNl3uaVt+L8e+sCbJve5zOlGc 273PaGy6gCxFR2ReWhYjBDd2Az5i4rVDHJR/1SkJIxsmCIpi05OSjiBUjUmiPNMj P7IgMFCN9N6o5efJ53NeLOjNiN9Q2bG2cozIH0Z2u3jYKukNs++SoFsx61qUSJ2N LkTijajs4stXS1cqYNnubmZEr6QnYRzaAw2sMpL7dQfAOMXIFnIddGLmJLxEjX6D pCOiJZeVppePzBZiqYSM4S8V7QoQIQPnItKzQ6dTLja9k2rRdLpvMW9QC2oua2KP gqgon6JbIoqwRJIWDmUjFeOxMvi7yDkyhb3JCre4kKJXhKNgbCMSwggqfSLJ+V4w IL6ydI1ng7Fu+ufGgkPc7esd4ztDd5mDxn90zBfMDvseX2YFqIItS7rS0srlcUqT 5kHkEfLfwNk= =/T+N -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce