-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2022:1209-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:1209 Issue date: 2022-04-05 CVE Names: CVE-2020-8647 CVE-2020-8649 CVE-2022-0435 ==================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 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 Real Time EUS (v. 8.2) - x86_64 Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2) - 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: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435) * kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c (CVE-2020-8647) * kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c (CVE-2020-8649) 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 RT source tree to the latest RHEL-8.2.z16 Batch (BZ#2066950) 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/): 1802555 - CVE-2020-8649 kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c 1802563 - CVE-2020-8647 kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c 2048738 - CVE-2022-0435 kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS 6. Package List: Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2): Source: kernel-rt-4.18.0-193.80.1.rt13.130.el8_2.src.rpm x86_64: kernel-rt-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-core-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-core-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-devel-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-kvm-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-modules-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debuginfo-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-devel-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-kvm-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-modules-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-modules-extra-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm Red Hat Enterprise Linux Real Time EUS (v. 8.2): Source: kernel-rt-4.18.0-193.80.1.rt13.130.el8_2.src.rpm x86_64: kernel-rt-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-core-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-core-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-devel-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-modules-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debuginfo-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-devel-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-modules-4.18.0-193.80.1.rt13.130.el8_2.x86_64.rpm kernel-rt-modules-extra-4.18.0-193.80.1.rt13.130.el8_2.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-2020-8647 https://access.redhat.com/security/cve/CVE-2020-8649 https://access.redhat.com/security/cve/CVE-2022-0435 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: GnuPG v1 iQIVAwUBYkxq9dzjgjWX9erEAQgQUg//dVUPmmtg499yuMnEcc1SNULYHfR8JKnG x5bgGqO+rhn9AKwNc/jYDSPnxkiviscU0wsFuCPgnatpzmmVQbjt0YASuOuDnPaj ES4oiy4oosByL0hl5sQuFLZBnm0RQ68trlA0gZVnjJd2mPztWssdkuEJGb1fKSmr pJVg6uglsuwFURzsztcyO+FwqQ1c0E9Nb4Y+jlopsmVWDfuqf4ouXtPXdLRq6c8t x/4Tro2LX02ccv+PFL9Py/0VtcyAy8kq67U497+3i+wGB3aJHR4Ym5P9xMGiNYCB tUBrbAoWdF7ayURn/CaeHqpDFm42q04TG5aNATPYXi5lZFYwEeIRgz6akdWlM7Qg oysCL2h2i588MVKi/wDAB9AhWQ8YRw8fYCA9eTELmGY/l6+S08zwVgERC5HqBFVR bjgi/glrb2KtqhcmQKtrZl0n7AluVlECieICRHkUKttvwSG9qA02ZeSMA4S1PaUk 9jRa7SWThQcX6Ad+2wv68/6fYcOmXuE6Vxk9Vq1MXnyscM14KNq/2W8FIy5NrSkn lyx5Fn6eAbuldbbDJHVZjimiYtonCLXqeD6tjZtiPEi6RemS4iiUSBEN0a9I8ahn 4fp4CNe5CG3FfZHYy5BUev0WZyoDnOS+v2RMy8ujF6LeEr0yk1FzO/3ydORWuf1l rfmXCugSDQI=GUlE -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce