RHSA-2021:3446: Important: kernel security and bug fix update
Published Sep 7, 2021
·Updated
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: out-of-bounds write due to a heap buffer overflow in hidinputchangeresolutionmultipliers() of hid-input.c (CVE-2021-0512) kernel: use-after-free in route4change() in net/sched/clsroute.c (CVE-2021-3715) kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576) 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): Guest kernel call trace when boot up with 4T memory and 2 vcpus (BZ#1993552)
Affected Software
105 affected componentsFixes available
redhat/kernel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/bpftool<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/bpftool-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-abi-whitelists<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-core<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-cross-headers<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-core<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-devel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-modules<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-modules-extra<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-devel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-doc<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-headers<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-modules<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-modules-extra<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools-libs<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/perf<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/perf-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/python3-perf<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/python3-perf-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/bpftool<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/bpftool-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-core<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-cross-headers<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-core<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-devel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-modules<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-modules-extra<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debuginfo-common-s390x<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-devel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-headers<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-modules<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-modules-extra<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-zfcpdump<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-zfcpdump-core<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-zfcpdump-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-zfcpdump-devel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-zfcpdump-modules<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-zfcpdump-modules-extra<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/perf<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/perf-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/python3-perf<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/python3-perf-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/bpftool<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/bpftool-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-core<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-cross-headers<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-core<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-devel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-modules<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debug-modules-extra<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-debuginfo-common-ppc64le<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-devel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-headers<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-modules<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-modules-extra<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools-libs<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/perf<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/perf-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/python3-perf<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/python3-perf-debuginfo<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/bpftool<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/bpftool-debuginfo<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-core<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-cross-headers<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-debug<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-debug-core<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-debug-debuginfo<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-debug-devel<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-debug-modules<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-debug-modules-extra<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-debuginfo<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-debuginfo-common-aarch64<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-devel<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-headers<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-modules<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-modules-extra<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-tools<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-tools-debuginfo<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-tools-libs<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/perf<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/perf-debuginfo<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/python3-perf<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/python3-perf-debuginfo<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
redhat/kernel-tools-libs-devel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools-libs-devel<4.18.0-193.65.2.el8_2
4.18.0-193.65.2.el8_2
redhat/kernel-tools-libs-devel<4.18.0-193.65.2.el8_2.aa
4.18.0-193.65.2.el8_2.aa
Remediation
Event History
Sep 7, 2021
Advisory Published
via Red Hat·12:00 AM
Frequently Asked Questions
1
What is the severity of RHSA-2021:3446?
The severity of RHSA-2021:3446 is rated as critical due to the potential for remote exploitation.
2
How do I fix RHSA-2021:3446?
To fix RHSA-2021:3446, update the kernel and related components to version 4.18.0-193.65.2.el8_2 or later.
3
What vulnerabilities are addressed in RHSA-2021:3446?
RHSA-2021:3446 addresses a heap buffer overflow and a use-after-free vulnerability in the Linux kernel.
4
Which packages are affected by RHSA-2021:3446?
RHSA-2021:3446 affects various kernel packages including kernel, bpftool, and kernel-core among others.
5
Is there a workaround for RHSA-2021:3446?
No official workaround is provided for RHSA-2021:3446; applying the kernel update is the recommended action.