The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_0134.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




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Red Hat Security Advisory

Synopsis:           Important: kernel-rt security update
Advisory ID:        RHSA-2024:0134-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:0134
Issue date:         2024-01-10
Revision:           03
CVE Names:          CVE-2023-2162
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Summary: 

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.

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:

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

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

* kernel: vmwgfx: reference count issue leads to use-after-free in surface handling (CVE-2023-5633)

* kernel: netfilter: potential slab-out-of-bound access due to integer underflow (CVE-2023-42753)

* Kernel: UAF during login when accessing the shost ipaddress (CVE-2023-2162)

* hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)

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):

* kernel-rt: update RT source tree to the latest RHEL-8.9.z1 Batch (JIRA:RHEL-17347)


Solution:

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



CVEs:

CVE-2023-2162

References:

https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2187773
https://bugzilla.redhat.com/show_bug.cgi?id=2207625
https://bugzilla.redhat.com/show_bug.cgi?id=2237760
https://bugzilla.redhat.com/show_bug.cgi?id=2239843
https://bugzilla.redhat.com/show_bug.cgi?id=2245663