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Red Hat Enterprise Linux 8.4: RHSA-2023:4962-01 Important Kernel Update

red hat
Calendar Grey September 5, 2023
Dist Redhat Esm H88
A significant security notice regarding an update to the Red Hat Enterprise Linux kernel, focusing on severe flaws and weaknesses.
An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and...

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.
Security Fix(es):
* kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)
* kernel: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090)
* kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)
* kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (CVE-2023-4004)
* kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001)
* kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)
* Kernel: bluetooth: Unauthorized management command execution (CVE-2023-2002)
* kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)
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):
* aacraid misses interrupts when a CPU is disabled resulting in scsi timeouts and the adapter being unusable until reboot. (BZ#2216500)
* rbd: avoid fast-diff corruption in snapshot-based mirroring [8.9] (BZ#2216771)
* refcount_t overflow often happens in mem_cgroup_id_get_online() (BZ#2221012)
* enable conntrack clash resolution for GRE (BZ#2223544)
* iavf: Fix race between iavf_close and iavf_reset_task (BZ#2223608)
* libceph: harden msgr2.1 frame segment length checks [8.x] (BZ#2227075)
* [i40e] error: Cannot set interface MAC/vlanid to 1e:b7:e2:02:b1:aa/0 for ifname ens4f0 vf 0: Resource temporarily unavailable (BZ#2228165)
Enhancement(s):
* [Intel 8.7 FEAT] TSC: Avoid clock watchdog when not needed (BZ#2216050)

Topics%20covered

Topics Covered

security advisory security issue kernel update bug fix red hat enterprise linux important update linux kernel

References

https://access.redhat.com/security/cve/CVE-2023-1829 https://access.redhat.com/security/cve/CVE-2023-2002 https://access.redhat.com/security/cve/CVE-2023-2124 https://access.redhat.com/security/cve/CVE-2023-3090 https://access.redhat.com/security/cve/CVE-2023-3390 https://access.redhat.com/security/cve/CVE-2023-4004 https://access.redhat.com/security/cve/CVE-2023-35001 https://access.redhat.com/security/cve/CVE-2023-35788 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS AUS (v.8.4):
Source: kernel-4.18.0-305.103.1.el8_4.src.rpm
noarch: kernel-abi-stablelists-4.18.0-305.103.1.el8_4.noarch.rpm kernel-doc-4.18.0-305.103.1.el8_4.noarch.rpm
x86_64: bpftool-4.18.0-305.103.1.el8_4.x86_64.rpm bpftool-debuginfo-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-core-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-cross-headers-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-debug-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-debug-core-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-debug-debuginfo-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-debug-devel-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-debug-modules-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-debug-modules-extra-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-debuginfo-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-devel-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-headers-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-modules-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-modules-extra-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-tools-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-tools-debuginfo-4.18.0-305.103.1.el8_4.x86_64.rpm kernel-tools-libs-4.18.0-305.103.1.el8_4.x86_64.rpm perf-4.18.0-305.103.1.el8_4.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4962-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4962
Issue date: 2023-09-05

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.4Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 UpdateServices for SAP Solutions.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 security issue kernel update bug fix red hat enterprise linux important update linux kernel

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS AUS (v.8.4) - noarch, x86_64

Red Hat Enterprise Linux BaseOS E4S (v.8.4) - aarch64, noarch, ppc64le, s390x, x86_64

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

Bugs Fixed

2187308 - CVE-2023-2002 Kernel: bluetooth: Unauthorized management command execution

2187439 - CVE-2023-2124 kernel: OOB access in the Linux kernel's XFS subsystem

2188470 - CVE-2023-1829 kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter

2213260 - CVE-2023-3390 kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests

2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()

2218672 - CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb

2220892 - CVE-2023-35001 kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()

2225275 - CVE-2023-4004 kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()

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