-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2022:5220-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:5220 Issue date: 2022-06-28 CVE Names: CVE-2020-29368 CVE-2022-1012 CVE-2022-1729 CVE-2022-1966 CVE-2022-27666 ==================================================================== 1. Summary: An update for kernel 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 CodeReady Linux Builder EUS (v. 8.2) - aarch64, ppc64le, x86_64 Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - 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: Small table perturb size in the TCP source port generation algorithm can lead to information leak (CVE-2022-1012) * kernel: race condition in perf_event_open leads to privilege escalation (CVE-2022-1729) * kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-1966) * kernel: buffer overflow in IPsec ESP transformation code (CVE-2022-27666) * kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check (CVE-2020-29368) 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): * slub corruption during LPM of hnv interface (BZ#2081252) * sleeping function called from invalid context at kernel/locking/spinlock_rt.c:35 (BZ#2082090) * Backport request of "genirq: use rcu in kstat_irqs_usr()" (BZ#2083310) * kernel memory leak while freeing nested actions (BZ#2086604) * dm: sync rhel-8.6 with upstream 5.13 through 5.16 fixes and improvements (BZ#2088036) * NFS processing deadlock in low memory condition (BZ#2094459) 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/): 1903244 - CVE-2020-29368 kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check 2061633 - CVE-2022-27666 kernel: buffer overflow in IPsec ESP transformation code 2064604 - CVE-2022-1012 kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak 2086753 - CVE-2022-1729 kernel: race condition in perf_event_open leads to privilege escalation 2092427 - CVE-2022-1966 kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v. 8.2): Source: kernel-4.18.0-193.87.1.el8_2.src.rpm aarch64: bpftool-4.18.0-193.87.1.el8_2.aarch64.rpm bpftool-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-core-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-cross-headers-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debug-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debug-core-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debug-devel-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debug-modules-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debug-modules-extra-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-devel-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-headers-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-modules-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-modules-extra-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-tools-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-tools-libs-4.18.0-193.87.1.el8_2.aarch64.rpm perf-4.18.0-193.87.1.el8_2.aarch64.rpm perf-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm python3-perf-4.18.0-193.87.1.el8_2.aarch64.rpm python3-perf-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm noarch: kernel-abi-whitelists-4.18.0-193.87.1.el8_2.noarch.rpm kernel-doc-4.18.0-193.87.1.el8_2.noarch.rpm ppc64le: bpftool-4.18.0-193.87.1.el8_2.ppc64le.rpm bpftool-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-core-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-cross-headers-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debug-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debug-core-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debug-devel-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debug-modules-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debug-modules-extra-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-devel-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-headers-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-modules-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-modules-extra-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-tools-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-tools-libs-4.18.0-193.87.1.el8_2.ppc64le.rpm perf-4.18.0-193.87.1.el8_2.ppc64le.rpm perf-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm python3-perf-4.18.0-193.87.1.el8_2.ppc64le.rpm python3-perf-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm s390x: bpftool-4.18.0-193.87.1.el8_2.s390x.rpm bpftool-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm kernel-4.18.0-193.87.1.el8_2.s390x.rpm kernel-core-4.18.0-193.87.1.el8_2.s390x.rpm kernel-cross-headers-4.18.0-193.87.1.el8_2.s390x.rpm kernel-debug-4.18.0-193.87.1.el8_2.s390x.rpm kernel-debug-core-4.18.0-193.87.1.el8_2.s390x.rpm kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm kernel-debug-devel-4.18.0-193.87.1.el8_2.s390x.rpm kernel-debug-modules-4.18.0-193.87.1.el8_2.s390x.rpm kernel-debug-modules-extra-4.18.0-193.87.1.el8_2.s390x.rpm kernel-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm kernel-debuginfo-common-s390x-4.18.0-193.87.1.el8_2.s390x.rpm kernel-devel-4.18.0-193.87.1.el8_2.s390x.rpm kernel-headers-4.18.0-193.87.1.el8_2.s390x.rpm kernel-modules-4.18.0-193.87.1.el8_2.s390x.rpm kernel-modules-extra-4.18.0-193.87.1.el8_2.s390x.rpm kernel-tools-4.18.0-193.87.1.el8_2.s390x.rpm kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm kernel-zfcpdump-4.18.0-193.87.1.el8_2.s390x.rpm kernel-zfcpdump-core-4.18.0-193.87.1.el8_2.s390x.rpm kernel-zfcpdump-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm kernel-zfcpdump-devel-4.18.0-193.87.1.el8_2.s390x.rpm kernel-zfcpdump-modules-4.18.0-193.87.1.el8_2.s390x.rpm kernel-zfcpdump-modules-extra-4.18.0-193.87.1.el8_2.s390x.rpm perf-4.18.0-193.87.1.el8_2.s390x.rpm perf-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm python3-perf-4.18.0-193.87.1.el8_2.s390x.rpm python3-perf-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm x86_64: bpftool-4.18.0-193.87.1.el8_2.x86_64.rpm bpftool-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-core-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-cross-headers-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debug-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debug-core-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debug-devel-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debug-modules-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debug-modules-extra-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-devel-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-headers-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-modules-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-modules-extra-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-tools-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-tools-libs-4.18.0-193.87.1.el8_2.x86_64.rpm perf-4.18.0-193.87.1.el8_2.x86_64.rpm perf-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm python3-perf-4.18.0-193.87.1.el8_2.x86_64.rpm python3-perf-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm Red Hat CodeReady Linux Builder EUS (v. 8.2): aarch64: bpftool-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm kernel-tools-libs-devel-4.18.0-193.87.1.el8_2.aarch64.rpm perf-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm python3-perf-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm ppc64le: bpftool-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm kernel-tools-libs-devel-4.18.0-193.87.1.el8_2.ppc64le.rpm perf-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm python3-perf-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm x86_64: bpftool-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm kernel-tools-libs-devel-4.18.0-193.87.1.el8_2.x86_64.rpm perf-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm python3-perf-debuginfo-4.18.0-193.87.1.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-2020-29368 https://access.redhat.com/security/cve/CVE-2022-1012 https://access.redhat.com/security/cve/CVE-2022-1729 https://access.redhat.com/security/cve/CVE-2022-1966 https://access.redhat.com/security/cve/CVE-2022-27666 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 iQIVAwUBYrtJ8dzjgjWX9erEAQgCvw/+LVBtoEV74s8ETOdN8MzusgwneMfUHhCp k5TVSejtmSi2M9k7CYy1z36WdXZRox/SMJmDR8ym/4oHq9fS9S9xIuk8RvMytm9Q u4Rmq7ET4IXqwsyZREDzPJFnvV6VmIfeKKcyyAxGGWgB8JMYVnr4G8m5NGBx0tWO 5ntpx2BOOfxc8HW5nJYRC5lbaGcgS4XZRVVZHlsdr1Eq27CowpxDQTgWe22q0pE6 14m4mTmPIVfN6YUq/OGpVwy6cvVD5hxh0DL4e6vW/21Q3nfALTmZwN6/GvvS/3pI hDycazS1kJm9RjkEZHhjA4D2Pg54xR/EtPTDLYKoEzGrUXe+Sif9WRKWKjxQ9fE1 L7Tfjeex9WSBaP0ZybfiTWUB8MJ0VpSlTmW261C2qL6C1xC5ROGkQQXpBm47E7Cs yxAoiIYia2sIHpHmDS3icWScrKWo7z9i6H6ECX/oHErPr+wiLiXQwV9zzKmNMQgD CYE2lCtlYWwTNIFV8OkWb35hdDlXqiiwamL/qy5uW8tDhoykF3zaJYpkEnqsAU3m EQkK927vfMTSOk5bX+MyV9u4SVJtEbW+IJEq6wQUld54nrQATNXEnQD59nPcGyYf X4zC0b1bNuIhXL1DCNSiSqE4BSnE7lpFDG7741hj31cMJxj9A4M9ikGypjQ7Zqet j7Ad1bO2h7Y jK -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce