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Red Hat Enterprise Linux 8.4 RHSA-2023-4967 Important Kernel Fixes

red hat
Calendar Grey September 5, 2023
Dist Redhat Esm H88
The latest Oracle Security Bulletin includes vital updates for OJVM and Java SE vulnerabilities. Ensure your systems are protected!
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

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

Summary

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
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)
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.

Topics%20covered

Topics Covered

security advisory important kernel fix security impact red hat enterprise update services kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2023-1829 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 E4S (v.8.4):
Source: kpatch-patch-4_18_0-305_76_1-1-5.el8_4.src.rpm kpatch-patch-4_18_0-305_82_1-1-4.el8_4.src.rpm kpatch-patch-4_18_0-305_86_2-1-3.el8_4.src.rpm kpatch-patch-4_18_0-305_88_1-1-3.el8_4.src.rpm kpatch-patch-4_18_0-305_91_1-1-2.el8_4.src.rpm kpatch-patch-4_18_0-305_97_1-1-1.el8_4.src.rpm
ppc64le: kpatch-patch-4_18_0-305_76_1-1-5.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_76_1-debuginfo-1-5.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_76_1-debugsource-1-5.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_82_1-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_82_1-debuginfo-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_82_1-debugsource-1-4.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_86_2-1-3.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_86_2-debuginfo-1-3.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_86_2-debugsource-1-3.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_88_1-1-3.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_88_1-debuginfo-1-3.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_88_1-debugsource-1-3.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_91_1-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_91_1-debuginfo-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_91_1-debugsource-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_97_1-1-1.el8_4.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4967-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4967
Issue date: 2023-09-05

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux8.4 Update Services 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 important kernel fix security impact red hat enterprise update services kpatch-patch

Relevant Releases Architectures

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

Bugs Fixed

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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