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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0566 kernel security and bug fix update 17 February 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Impact/Access: Increased Privileges -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Existing Account Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-25212 CVE-2020-24394 Reference: ESB-2021.0365 ESB-2020.4406 ESB-2020.4219 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:0526 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: kernel security and bug fix update Advisory ID: RHSA-2021:0526-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0526 Issue date: 2021-02-16 CVE Names: CVE-2020-24394 CVE-2020-25212 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.7 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. 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. 7.7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.7) - ppc64, ppc64le, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: umask not applied on filesystem without ACL support (CVE-2020-24394) * kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212) 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): * Security patch for CVE-2020-25212 breaks directory listings via 'ls' on NFS V4.2 shares mounted with selinux enabled labels (BZ#1919145) * Panic in semctl_nolock.constprop.15+0x25b (BZ#1919307) 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/): 1869141 - CVE-2020-24394 kernel: umask not applied on filesystem without ACL support 1877575 - CVE-2020-25212 kernel: TOCTOU mismatch in the NFS client code 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.7): Source: kernel-3.10.0-1062.45.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1062.45.1.el7.noarch.rpm kernel-doc-3.10.0-1062.45.1.el7.noarch.rpm x86_64: bpftool-3.10.0-1062.45.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debug-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.45.1.el7.x86_64.rpm kernel-devel-3.10.0-1062.45.1.el7.x86_64.rpm kernel-headers-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.45.1.el7.x86_64.rpm perf-3.10.0-1062.45.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm python-perf-3.10.0-1062.45.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7): x86_64: bpftool-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1062.45.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.7): Source: kernel-3.10.0-1062.45.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1062.45.1.el7.noarch.rpm kernel-doc-3.10.0-1062.45.1.el7.noarch.rpm ppc64: bpftool-3.10.0-1062.45.1.el7.ppc64.rpm bpftool-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm kernel-3.10.0-1062.45.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-1062.45.1.el7.ppc64.rpm kernel-debug-3.10.0-1062.45.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-1062.45.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1062.45.1.el7.ppc64.rpm kernel-devel-3.10.0-1062.45.1.el7.ppc64.rpm kernel-headers-3.10.0-1062.45.1.el7.ppc64.rpm kernel-tools-3.10.0-1062.45.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-1062.45.1.el7.ppc64.rpm perf-3.10.0-1062.45.1.el7.ppc64.rpm perf-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm python-perf-3.10.0-1062.45.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm ppc64le: bpftool-3.10.0-1062.45.1.el7.ppc64le.rpm bpftool-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-debug-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-devel-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-headers-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-tools-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-1062.45.1.el7.ppc64le.rpm perf-3.10.0-1062.45.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm python-perf-3.10.0-1062.45.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm s390x: bpftool-3.10.0-1062.45.1.el7.s390x.rpm bpftool-debuginfo-3.10.0-1062.45.1.el7.s390x.rpm kernel-3.10.0-1062.45.1.el7.s390x.rpm kernel-debug-3.10.0-1062.45.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-1062.45.1.el7.s390x.rpm kernel-debug-devel-3.10.0-1062.45.1.el7.s390x.rpm kernel-debuginfo-3.10.0-1062.45.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-1062.45.1.el7.s390x.rpm kernel-devel-3.10.0-1062.45.1.el7.s390x.rpm kernel-headers-3.10.0-1062.45.1.el7.s390x.rpm kernel-kdump-3.10.0-1062.45.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-1062.45.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-1062.45.1.el7.s390x.rpm perf-3.10.0-1062.45.1.el7.s390x.rpm perf-debuginfo-3.10.0-1062.45.1.el7.s390x.rpm python-perf-3.10.0-1062.45.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-1062.45.1.el7.s390x.rpm x86_64: bpftool-3.10.0-1062.45.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debug-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.45.1.el7.x86_64.rpm kernel-devel-3.10.0-1062.45.1.el7.x86_64.rpm kernel-headers-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.45.1.el7.x86_64.rpm perf-3.10.0-1062.45.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm python-perf-3.10.0-1062.45.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.7): ppc64: bpftool-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1062.45.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-1062.45.1.el7.ppc64.rpm perf-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1062.45.1.el7.ppc64.rpm ppc64le: bpftool-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-1062.45.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1062.45.1.el7.ppc64le.rpm x86_64: bpftool-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1062.45.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.45.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.45.1.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-2020-24394 https://access.redhat.com/security/cve/CVE-2020-25212 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYCuEhNzjgjWX9erEAQitZBAAnxjAPJXyTTzBdorBkh7ZfpAfu/c8PmNR KyzDcdoeJ0u4joSRspboRjAAOqhVOJhOZj0AuigmdFtfc3UY6tN+gPiBCq0IN428 Wo7/zyxC/jcAXCGHtndaxVyBHgOZx9Zv3o/5X+rndRRcSu2WBFaq5c/KGDK7YNfD jrniNwDehOngPfQUh+4AKUtYd5RJu8XRhWT3ff/g7St4MwwsomLUvZk2AhtRsCao 0SkaSbFTC87mI0+up0EQuQ+xdzPCh6yISN4CBK6BlcMTajXZq5WXSWtlhvfwn8au bhRBnH6mm3J3rkDL4KTkuLgeWxFyDFOGxg5wQyJIZMK8pjUqSrImBjVaWO4uXzTz 036I3fuPsj08pWXAsdtr2JpSQHP817c9XgH8xGT1W4gFda4En+xSYjRryiqaOs1b VOHAoYVxBp5iyCNqdPrjPQGICnqRWTQg5CsnLb8c0N6prrchiI9LUVEqSCNjcvU2 ggitzu5GT2o23XJXy11YgV1ITe//0RZg9RwJIf/OxAq5sFtU0kUEyF5a3PnXc7mr alpy075EUgO7+8iPafrHrfFZdN304T54nPT/OEhWZVeE9LbdR70qzunOH34IJys0 lW1YzAkd2sRU8ir9+DxdIpiHYd0D/YBMd3xbpUYN7hTLt7OFCY/vDuEShmA1Nikl 9CDJ2l64TEw= =Qhne - -----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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