RedHat: RHSA-2021-0184:01 Important: kernel security and bug fix update
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in
net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)
* 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):
* RHEL8.1 - net/smc: fix silent data corruption in SMC (BZ#1882242)
* RHEL8.1 - Random memory corruption may occur due to incorrect tlbflush
(BZ#1899210)
* RHEL8.3 Beta - RHEL8.3 hangs on dbginfo.sh execution, crash dump
generated (mm-) (BZ#1903021)
* [Azure][RHEL8] IP forwarding issue in netvsc (BZ#1904327)
Summary
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.
References
https://access.redhat.com/security/cve/CVE-2020-16166 https://access.redhat.com/security/cve/CVE-2020-25211 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux BaseOS EUS (v. 8.1):
Source:
kernel-4.18.0-147.38.1.el8_1.src.rpm
aarch64:
bpftool-4.18.0-147.38.1.el8_1.aarch64.rpm
bpftool-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-core-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-cross-headers-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debug-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debug-core-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debug-devel-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debug-modules-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debug-modules-extra-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-devel-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-headers-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-modules-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-modules-extra-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-tools-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-tools-libs-4.18.0-147.38.1.el8_1.aarch64.rpm
perf-4.18.0-147.38.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
python3-perf-4.18.0-147.38.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
noarch:
kernel-abi-whitelists-4.18.0-147.38.1.el8_1.noarch.rpm
kernel-doc-4.18.0-147.38.1.el8_1.noarch.rpm
ppc64le:
bpftool-4.18.0-147.38.1.el8_1.ppc64le.rpm
bpftool-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-core-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-cross-headers-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debug-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debug-core-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debug-devel-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debug-modules-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-devel-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-headers-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-modules-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-modules-extra-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-tools-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-tools-libs-4.18.0-147.38.1.el8_1.ppc64le.rpm
perf-4.18.0-147.38.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
python3-perf-4.18.0-147.38.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
s390x:
bpftool-4.18.0-147.38.1.el8_1.s390x.rpm
bpftool-debuginfo-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-core-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-cross-headers-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-debug-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-debug-core-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-debug-debuginfo-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-debug-devel-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-debug-modules-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-debug-modules-extra-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-debuginfo-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-devel-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-headers-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-modules-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-modules-extra-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-tools-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-tools-debuginfo-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-zfcpdump-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-zfcpdump-core-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-zfcpdump-devel-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-4.18.0-147.38.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-147.38.1.el8_1.s390x.rpm
perf-4.18.0-147.38.1.el8_1.s390x.rpm
perf-debuginfo-4.18.0-147.38.1.el8_1.s390x.rpm
python3-perf-4.18.0-147.38.1.el8_1.s390x.rpm
python3-perf-debuginfo-4.18.0-147.38.1.el8_1.s390x.rpm
x86_64:
bpftool-4.18.0-147.38.1.el8_1.x86_64.rpm
bpftool-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-core-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-cross-headers-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debug-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debug-core-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debug-devel-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debug-modules-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debug-modules-extra-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-devel-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-headers-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-modules-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-modules-extra-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-tools-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-tools-libs-4.18.0-147.38.1.el8_1.x86_64.rpm
perf-4.18.0-147.38.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
python3-perf-4.18.0-147.38.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
Red Hat CodeReady Linux Builder EUS (v. 8.1):
aarch64:
bpftool-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
kernel-tools-libs-devel-4.18.0-147.38.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.38.1.el8_1.aarch64.rpm
ppc64le:
bpftool-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-147.38.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.38.1.el8_1.ppc64le.rpm
x86_64:
bpftool-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
kernel-tools-libs-devel-4.18.0-147.38.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.38.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.38.1.el8_1.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/
Topic
An update for kernel is now available for Red Hat Enterprise Linux 8.1Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat CodeReady Linux Builder EUS (v. 8.1) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS EUS (v. 8.1) - aarch64, noarch, ppc64le, s390x, x86_64
Bugs Fixed
1865751 - CVE-2020-16166 kernel: information exposure in drivers/char/random.c and kernel/time/timer.c
1877571 - CVE-2020-25211 kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c