-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: kernel-rt security and bug fix update Advisory ID: RHSA-2021:3547-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:3547 Issue date: 2021-09-15 CVE Names: CVE-2021-3653 ==================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 8. 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 Real Time (v. 8) - x86_64 Red Hat Enterprise Linux Real Time for NFV (v. 8) - 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: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653) 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 RHEL-8.4.z source tree (BZ#2001131) 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/): 1983686 - CVE-2021-3653 kernel: SVM nested virtualization issue in KVM (AVIC support) 6. Package List: Red Hat Enterprise Linux Real Time for NFV (v. 8): Source: kernel-rt-4.18.0-305.19.1.rt7.91.el8_4.src.rpm x86_64: kernel-rt-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-core-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-kvm-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-devel-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-kvm-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-modules-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm Red Hat Enterprise Linux Real Time (v. 8): Source: kernel-rt-4.18.0-305.19.1.rt7.91.el8_4.src.rpm x86_64: kernel-rt-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-core-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-devel-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-modules-4.18.0-305.19.1.rt7.91.el8_4.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.19.1.rt7.91.el8_4.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-2021-3653 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYUHGA9zjgjWX9erEAQhy8Q//edNbeEACPPFeiPatH9Wa6iIZWCHcQu5u bae3O4kwcKmEk6uuxWS036cVW15gweIc1x+rcV0Efg8eOohjLHi2TTO/hENFP00p DW8VFR0Qmtp4YdQK11yNlp3xJao6SGq7KaEnwMKANwtb73M4xUUJ/D3sRAwkO+EA c43X1hjDv7UmGIy/c8+J9HqBhbkLyTEcJh4S9Nc68y9/DLbK3195Ug54g6FEtruc d4PgC9cfA8+HOukBFNZZslMUW7TSm19zhOQPPf+iF904u77LapHXNzQgZVnz4hNG pN+uwO8twJun8I7l4SOiAMR+xPF2n/9Py7N3r9RkEwDc4XKnzVNijYEG5OzZDFPz zNcHmRdYU0Lj99YTW71gP5z2GyXxp/6A8TiATHSyCkeyiJHC1DSc0Av+nCZKEuKn 6wXrksIThPb6Hgd9jB9WupPdDGzqghnwR+KJN3rx3FVCw+YgpO1QC74f2lmOXMrw 6qZNhmtmZIvfIft4iUa7UsMHQ4+k6B+zSTKEg8p1hbYgBLiSdXDXvfIXH/GZi3iV M129fAi7+cXE3NqD/YL5JJgnH/6dPUR/1by/4jZqNV0M3L3q4QFPdZqOrksViYuG bwZiOx/NSeEM0yM/rhyFwCFFtZFI3q8mmNiMDa2hTQA71yPgLwTiDRyTcIxqt0cJ hJLjI5RS7pM=Iler -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce