-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: kernel-rt security and bug fix update Advisory ID: RHSA-2020:5428-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:5428 Issue date: 2020-12-15 CVE Names: CVE-2020-16166 ===================================================================== 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 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 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: information exposure in drivers/char/random.c and kernel/time/timer.c (CVE-2020-16166) 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-8.2.z#5 source tree (BZ#1873287) * optimization for delaying the freeing of empty slubs causes a NULL pointer dereference (BZ#1880502) 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/): 1865751 - CVE-2020-16166 kernel: information exposure in drivers/char/random.c and kernel/time/timer.c 1880502 - optimization for delaying the freeing of empty slubs causes a NULL pointer dereference [rhel-8.2.0.z] 6. Package List: Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2): Source: kernel-rt-4.18.0-193.37.1.rt13.87.el8_2.src.rpm x86_64: kernel-rt-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-core-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-core-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-devel-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-kvm-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-modules-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debuginfo-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-devel-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-kvm-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-modules-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-modules-extra-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm Red Hat Enterprise Linux Real Time EUS (v. 8.2): Source: kernel-rt-4.18.0-193.37.1.rt13.87.el8_2.src.rpm x86_64: kernel-rt-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-core-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-core-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-devel-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-modules-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debuginfo-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-devel-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-modules-4.18.0-193.37.1.rt13.87.el8_2.x86_64.rpm kernel-rt-modules-extra-4.18.0-193.37.1.rt13.87.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-2020-16166 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 2020 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBX9h1CtzjgjWX9erEAQjamw//WW0j4xea2reCgXG0e84/sY5dbgyKLHcJ CHZcb6A+JRWLQNwRo3BE9K8lKovTXOKJ7DHt8a330+OqWxNOKAvcRtY7vLD8bJnC KDVK8w5DmLtbTJYPlfAdj59ddAfjGkhIZ2kpRb1P1E3uzUWdAhF7oOrOgAYHt3oC g3QJKhBiJWKEMDOB7jFTD0J6k1/0QU/a3vnRyvphVsdP+tOggXQFKTrb+haybLN1 sDHZkH5FdSFmMRAVfm1/wHHX4ILAAaqnOOvgY+KFe0XPqrOsagv2DHSzGt+BLMjg BIvP6rtNTIUXClxCxCgyL2sVOXqguajD+wOk9olyfieE42EmKzSWiHdEfVjPmZu9 V6CAcU71A+zsoPu+K/DW/o73m4Ifap9GUQyRrz4HL8/d7Eww0TLFaQizeS2ttIME Gl3XKkR+ZdtKFSWA3GYx4jErEfcsVutj2f9ZwZsWIKEmFT/jvcZ8tfRE3V0XZbED Tu6IpN6nb7tpX9Ummhm223wrLnuu1l5pMiw5NVRWMYAb3ahiVq2JhoUnfB4runeB QFS0OKdzfri8pu/GTfTsqM61iWbHK8XSrXAJJZnVcggB7bx2QzmlqXp2cGJTB6zK pSfLg4gwxR79cpzcduSbpC3hI78w5y7sNQBOLiJRQ5qKHvxgx+EClcdDHHpmpZSh mxpxr1QadA0= =gpEc -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce