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Red Hat 8.4: RHSA-2023-1221-01 High Impact Kernel Fixes

red hat
Calendar Grey March 14, 2023
Dist Redhat Esm H88
Crucial kernel patch for Red Hat Enterprise Linux resolves severe vulnerabilities and improves security protocols.
An update for kernel is now available for Red Hat Enterprise Linux 8.4 Extended Update Support

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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
The following packages have been upgraded to a later upstream version: kernel (4.18.0). (BZ#2165648)
Security Fix(es):
* kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)
* kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)
* kernel: net: CPU soft lockup in TC mirred egress-to-ingress action (CVE-2022-4269)
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):
* RHEL 8.7 - Outputs of lsmem, lparstat, numactl and /proc/meminfo show wrong value of memory when LMB size is set to 4GB. (BZ#2140092)
* RHEL8.4 - boot: Add secure boot trailer (BZ#2151532)
* Concurrent reading of /proc/cpuinfo by multiple tasks causes soft lockup (BZ#2154441)
* GSS: OCP 4.10.30 node crash after ODF upgrade : unable to handle kernel NULL pointer dereference at 0000000000000000 : ceph_get_snap_realm+0x68/0xa0 [ceph] (BZ#2155799)
* cgroup: Backport cgroup_mutex performance patches (BZ#2160165)
* Redhat OpenShift: Error downloading big ZIP files inside pod on power OCP and pod getting restarted (BZ#2160223)
* i40e/iavf: VF reset task fails "Never saw reset" with 5 second timeout per VF (BZ#2160462)
* panic in fib6_rule_suppress+0x22 with custom xdp prog involved in (BZ#2167606)

Topics%20covered

Topics Covered

security advisory Red Hat bug fix important kernel security impact stack overflow

References

https://access.redhat.com/security/cve/CVE-2022-3564 https://access.redhat.com/security/cve/CVE-2022-4269 https://access.redhat.com/security/cve/CVE-2022-4378 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS EUS (v.8.4):
Source: kernel-4.18.0-305.82.1.el8_4.src.rpm
aarch64: bpftool-4.18.0-305.82.1.el8_4.aarch64.rpm bpftool-debuginfo-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-core-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-cross-headers-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-debug-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-debug-core-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-debug-debuginfo-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-debug-devel-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-debug-modules-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-debug-modules-extra-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-debuginfo-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-devel-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-headers-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-modules-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-modules-extra-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-tools-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-tools-debuginfo-4.18.0-305.82.1.el8_4.aarch64.rpm kernel-tools-libs-4.18.0-305.82.1.el8_4.aarch64.rpm perf-4.18.0-305.82.1.el8_4.aarch64.rpm perf-debuginfo-4.18.0-305.82.1.el8_4.aarch64.rpm python3-perf-4.18.0-305.82.1.el8_4.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:1221-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1221
Issue date: 2023-03-14

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.4Extended 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.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix important kernel security impact stack overflow

Relevant Releases Architectures

Red Hat CodeReady Linux Builder EUS (v. 8.4) - aarch64, ppc64le, x86_64

Red Hat Enterprise Linux BaseOS EUS (v.8.4) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2150272 - CVE-2022-4269 kernel: net: CPU soft lockup in TC mirred egress-to-ingress action

2150999 - CVE-2022-3564 kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c

2152548 - CVE-2022-4378 kernel: stack overflow in do_proc_dointvec and proc_skip_spaces

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