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Red Hat Security Advisory 2024-0381-03

Red Hat Security Advisory 2024-0381-03
Posted Jan 24, 2024
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2024-0381-03 - An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include a use-after-free vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2023-2163
SHA-256 | efdbfa0ef3d75feae3bac1603132f7ffa28bd7da0f04de8568a24ec4c563b305

Red Hat Security Advisory 2024-0381-03

Change Mirror Download


The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_0381.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, 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-2024:0381-03
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2024:0381
Issue date: 2024-01-24
Revision: 03
CVE Names: CVE-2023-2163
====================================================================

Summary:

An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.2 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: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)

* kernel: use after free in unix_stream_sendpage (CVE-2023-4622)

* kernel: net/sched: sch_hfsc UAF (CVE-2023-4623)

* kernel: eBPF: insufficient stack type checks in dynptr (CVE-2023-39191)

* kernel: IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)

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:

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



CVEs:

CVE-2023-2163

References:

https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2226783
https://bugzilla.redhat.com/show_bug.cgi?id=2237757
https://bugzilla.redhat.com/show_bug.cgi?id=2237760
https://bugzilla.redhat.com/show_bug.cgi?id=2240249
https://bugzilla.redhat.com/show_bug.cgi?id=2244723

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