The following advisory data is extracted from:

https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_9401.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:           Moderate: microcode_ctl security update
Advisory ID:        RHSA-2024:9401-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:9401
Issue date:         2024-11-12
Revision:           03
CVE Names:          CVE-2023-22655
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Summary: 

An update for microcode_ctl is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 microcode_ctl packages provide microcode updates for Intel and AMD processors.

Security Fix(es):

* kernel: local privilege escalation on Intel microcode on Intel(R) Xeon(R) (CVE-2023-22655)

* kernel: Local information disclosure on Intel(R) Atom(R) processors (CVE-2023-28746)

* kernel: Local information disclosure in some Intel(R) processors (CVE-2023-38575)

* kernel: Possible Denial of Service on Intel(R) Processors (CVE-2023-39368)

* kernel: Local information disclosure on Intel(R) Xeon(R) D processors with Intel(R) SGX due to incorrect calculation in microcode (CVE-2023-43490)

* intel-microcode: Race conditions in some Intel(R) Processors (CVE-2023-45733)

* intel-microcode: Unexpected behavior in Intel(R) Core(TM) Ultra Processors (CVE-2023-46103)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes linked from the References section.


Solution:

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



CVEs:

CVE-2023-22655

References:

https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.5_release_notes/index
https://access.redhat.com/security/updates/classification/#moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2270698
https://bugzilla.redhat.com/show_bug.cgi?id=2270700
https://bugzilla.redhat.com/show_bug.cgi?id=2270701
https://bugzilla.redhat.com/show_bug.cgi?id=2270703
https://bugzilla.redhat.com/show_bug.cgi?id=2270704
https://bugzilla.redhat.com/show_bug.cgi?id=2292296
https://bugzilla.redhat.com/show_bug.cgi?id=2292300