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Red Hat Security Advisory 2023-5548-01

Red Hat Security Advisory 2023-5548-01
Posted Oct 11, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-5548-01 - 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. Issues addressed include out of bounds write and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2023-3090
SHA-256 | ea2407eed69b186bd41d129c0b9330e667b533a063b71abfcfb917fe450d9abd

Red Hat Security Advisory 2023-5548-01

Change Mirror Download


The following data is constructed from data provided by Red Hat's json file at:

https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_5548.json

Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive. Going forward, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff




====================================================================
Red Hat Security Advisory

Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2023:5548-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:5548
Issue date: 2023-10-10
Revision: 01
CVE Names: CVE-2023-3090
====================================================================

Summary:

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.




Description:

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

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

* kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128)

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

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.


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"
"For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258"
"For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258"
"For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258


CVEs:

CVE-2023-3090

References:

https://access.redhat.com/security/updates/classification/#important

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