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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3889 kernel security update 16 November 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Impact/Access: Increased Privileges -- Remote/Unauthenticated Denial of Service -- Existing Account Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2021-43267 CVE-2021-20317 Reference: ESB-2021.3888 ESB-2021.3887 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:4647 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2021:4647-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4647 Issue date: 2021-11-15 CVE Names: CVE-2021-20317 CVE-2021-43267 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 8. 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 CodeReady Linux Builder (v. 8) - aarch64, ppc64le, x86_64 Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Insufficient validation of user-supplied sizes for the MSG_CRYPTO message type (CVE-2021-43267) * kernel: timer tree corruption leads to missing wakeup and system freeze (CVE-2021-20317) 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. 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/): 2005258 - CVE-2021-20317 kernel: timer tree corruption leads to missing wakeup and system freeze 2020362 - CVE-2021-43267 kernel: Insufficient validation of user-supplied sizes for the MSG_CRYPTO message type 6. Package List: Red Hat Enterprise Linux BaseOS (v. 8): Source: kernel-4.18.0-348.2.1.el8_5.src.rpm aarch64: bpftool-4.18.0-348.2.1.el8_5.aarch64.rpm bpftool-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-core-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-cross-headers-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debug-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debug-core-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debug-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debug-devel-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debug-modules-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debug-modules-extra-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-devel-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-headers-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-modules-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-modules-extra-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-tools-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-tools-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-tools-libs-4.18.0-348.2.1.el8_5.aarch64.rpm perf-4.18.0-348.2.1.el8_5.aarch64.rpm perf-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm python3-perf-4.18.0-348.2.1.el8_5.aarch64.rpm python3-perf-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm noarch: kernel-abi-stablelists-4.18.0-348.2.1.el8_5.noarch.rpm kernel-doc-4.18.0-348.2.1.el8_5.noarch.rpm ppc64le: bpftool-4.18.0-348.2.1.el8_5.ppc64le.rpm bpftool-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-core-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-cross-headers-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debug-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debug-core-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debug-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debug-devel-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debug-modules-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debug-modules-extra-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-devel-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-headers-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-modules-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-modules-extra-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-tools-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-tools-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-tools-libs-4.18.0-348.2.1.el8_5.ppc64le.rpm perf-4.18.0-348.2.1.el8_5.ppc64le.rpm perf-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm python3-perf-4.18.0-348.2.1.el8_5.ppc64le.rpm python3-perf-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm s390x: bpftool-4.18.0-348.2.1.el8_5.s390x.rpm bpftool-debuginfo-4.18.0-348.2.1.el8_5.s390x.rpm kernel-4.18.0-348.2.1.el8_5.s390x.rpm kernel-core-4.18.0-348.2.1.el8_5.s390x.rpm kernel-cross-headers-4.18.0-348.2.1.el8_5.s390x.rpm kernel-debug-4.18.0-348.2.1.el8_5.s390x.rpm kernel-debug-core-4.18.0-348.2.1.el8_5.s390x.rpm kernel-debug-debuginfo-4.18.0-348.2.1.el8_5.s390x.rpm kernel-debug-devel-4.18.0-348.2.1.el8_5.s390x.rpm kernel-debug-modules-4.18.0-348.2.1.el8_5.s390x.rpm kernel-debug-modules-extra-4.18.0-348.2.1.el8_5.s390x.rpm kernel-debuginfo-4.18.0-348.2.1.el8_5.s390x.rpm kernel-debuginfo-common-s390x-4.18.0-348.2.1.el8_5.s390x.rpm kernel-devel-4.18.0-348.2.1.el8_5.s390x.rpm kernel-headers-4.18.0-348.2.1.el8_5.s390x.rpm kernel-modules-4.18.0-348.2.1.el8_5.s390x.rpm kernel-modules-extra-4.18.0-348.2.1.el8_5.s390x.rpm kernel-tools-4.18.0-348.2.1.el8_5.s390x.rpm kernel-tools-debuginfo-4.18.0-348.2.1.el8_5.s390x.rpm kernel-zfcpdump-4.18.0-348.2.1.el8_5.s390x.rpm kernel-zfcpdump-core-4.18.0-348.2.1.el8_5.s390x.rpm kernel-zfcpdump-debuginfo-4.18.0-348.2.1.el8_5.s390x.rpm kernel-zfcpdump-devel-4.18.0-348.2.1.el8_5.s390x.rpm kernel-zfcpdump-modules-4.18.0-348.2.1.el8_5.s390x.rpm kernel-zfcpdump-modules-extra-4.18.0-348.2.1.el8_5.s390x.rpm perf-4.18.0-348.2.1.el8_5.s390x.rpm perf-debuginfo-4.18.0-348.2.1.el8_5.s390x.rpm python3-perf-4.18.0-348.2.1.el8_5.s390x.rpm python3-perf-debuginfo-4.18.0-348.2.1.el8_5.s390x.rpm x86_64: bpftool-4.18.0-348.2.1.el8_5.x86_64.rpm bpftool-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-core-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-cross-headers-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debug-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debug-core-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debug-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debug-devel-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debug-modules-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debug-modules-extra-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-devel-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-headers-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-modules-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-modules-extra-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-tools-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-tools-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-tools-libs-4.18.0-348.2.1.el8_5.x86_64.rpm perf-4.18.0-348.2.1.el8_5.x86_64.rpm perf-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm python3-perf-4.18.0-348.2.1.el8_5.x86_64.rpm python3-perf-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm Red Hat CodeReady Linux Builder (v. 8): aarch64: bpftool-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debug-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-tools-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm kernel-tools-libs-devel-4.18.0-348.2.1.el8_5.aarch64.rpm perf-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm python3-perf-debuginfo-4.18.0-348.2.1.el8_5.aarch64.rpm ppc64le: bpftool-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debug-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-tools-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm kernel-tools-libs-devel-4.18.0-348.2.1.el8_5.ppc64le.rpm perf-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm python3-perf-debuginfo-4.18.0-348.2.1.el8_5.ppc64le.rpm x86_64: bpftool-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debug-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-tools-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm kernel-tools-libs-devel-4.18.0-348.2.1.el8_5.x86_64.rpm perf-debuginfo-4.18.0-348.2.1.el8_5.x86_64.rpm python3-perf-debuginfo-4.18.0-348.2.1.el8_5.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-2021-20317 https://access.redhat.com/security/cve/CVE-2021-43267 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 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYZJxttzjgjWX9erEAQjojQ/+MoTjjMUK5jpJ5o6kkowfFdnGHfN7R6hs 9WXU7yyvdFHaqIrKEGwCD7UMGu/V5qMvhO6Y4vSnHDzeW55pLNgTWYNqqkjGDrfK X5bIZ7fWr9iM8ddZUEXcExe49BmPpT8VP04hL/VwyBCSANg7U1bCPaO2and4UJr4 /LAAGjcob69BiOoxws1V247/YUgIlGyFFuScgv6yNplWyZa4+4Vs4inkDipI1sY4 eKdzWOcjzRU30t/TO9IgYZSlyRQ1wwY0sNfFSyraAr3UzgZ3stWMjonuu+BJ0Fsa ymka+E+XeXx7O7OrmufrhGFLW2CmpCKO/4UxKlwsOhTSN/yPI/eLZUKT6Q3OYHtu DEnZ3Tjyr02Ch7vHonugVEFWP+nkCkoiayDr6hEkcaiGhB6riDbHgcGF3i9V3z/f ReaBRMpynqRdeck34HFpSH2hDQy46bYrIfvmejUlyK4AWXTAJGMW9+V1zvLFCVU3 /AWfJc83i2EmFArzM/e8bpKg3RKE4UTQ4Xj/x7Blc7sYXjvP7sBeGxj5cUcyHc1w XbFvXGj5fK1kmk+W3loYrzZ+qsSGWEGIO8OMLEvwnHwrdn1MyPfWycM8PCvwrbYa Nuc4P98I9BUkVRRjyAPXhe6g3Cg7ubKodjd33+BtSIOPwCxyvIQLExqIRftbGAji MXILtN60WO4= =YZsD - -----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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