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Red Hat Enterprise Linux 7 Important: RHSA-2022:1199-01 Kernel-RT Update

An update for kernel-rt 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. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2022:1199-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:1199 Issue date: 2022-04-05 CVE Names: CVE-2021-4028 CVE-2021-4083 ==================================================================== 1. Summary: An update for kernel-rt 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 Real Time (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: use-after-free in RDMA listen() (CVE-2021-4028) * kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083) 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): * kernel-rt: update to the latest RHEL7.9.z13 source tree (BZ#2059411) 4. Solution: For details on how to apply this update, which includes thechanges 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/): 2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen() 2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it 6. Package List: Red Hat Enterprise Linux for Real Time for NFV (v. 7): Source: kernel-rt-3.10.0-1160.62.1.rt56.1203.el7.src.rpm noarch: kernel-rt-doc-3.10.0-1160.62.1.rt56.1203.el7.noarch.rpm x86_64: kernel-rt-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debug-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-devel-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-kvm-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-trace-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm Red Hat Enterprise Linux for Real Time (v.7): Source: kernel-rt-3.10.0-1160.62.1.rt56.1203.el7.src.rpm noarch: kernel-rt-doc-3.10.0-1160.62.1.rt56.1203.el7.noarch.rpm x86_64: kernel-rt-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debug-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-devel-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-trace-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1160.62.1.rt56.1203.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1160.62.1.rt56.1203.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-2021-4028 https://access.redhat.com/security/cve/CVE-2021-4083 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPGv1 iQIVAwUBYky/VtzjgjWX9erEAQiySQ//UYbJP6KxUYZwgISbxES0JYF2bBS7hrKa K+iRVE/UyVbQNwZkyZ8ZG1KNuXTDaaUY/QFKrTsyfQWn0cAFIkldqxKZGMo1oyFg ZG5XQaoeatH3pG/o+Gx0B8cUhLt/Dkg9/P0sBkx6b/P4e8+DyIPkvXvRnLEAiF57 owfHrGxIq5AXgDuHxKLKXE+q8qxvb/mezPVGg3HRzrlQ9REtU4quQ4zIBxeVv5mV NpKUV1gN8hHknGp/5Ky4pGfHvlX9OFnyPwv3tbopyocvb4d+scpwNo0E4HTR2DBw kUr+i/ij0GIg3/jwzeZ6HlaAhw5cgfwk60fQ5scAUXSxtxrqDjHSyChXa84VH1z6 L36oqSZaSK7pnhc/VUZ2JYWrdq1+ambnDtwHTRI90Z41U3sNyQgPSoMozR5yN8Kt GIYaPHhXgZb28RfB52B+T9GpiLWVZtEuP8o+AoOjqd6DMKyCKpVNlq+4VV5cAmHK cqzqXXIzK3tCR1ov1rjzF27aesi82rog6Bh8NPUDzCBydxA61VbohC3ZkzxJSB0N YGtAsC6OxkSKomL+sI8sYJ586fdpLZjZgLbfoU3KxFGdcjlMCANs3/Dm2uNrRQnv ynSvi18OATnTqWKT+ABW+zB4jjijnWjsPCVheT1l6r5nACXUABD5ihCJQInRYGHh j6BMwcHrYzE=eReu -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. https://listman.redhat.com/mailman/listinfo/rhsa-announce . Notice regarding kernel-rt for Red Hat Enterprise Linux 7, containing critical security patches and optimizations for improved performance.. Kernel Patch, Red Hat Update, Security Fixes, Real Time Linux, Important Advisory. . Severity: Important. LinuxSecurity.com Team

Apr 05, 2022 •Important Red Hat