Issued:

2024-11-12

Updated:

2024-11-12

RHSA-2024:9401 - Moderate: microcode_ctl security update

Synopsis

Moderate: microcode_ctl security update

Type/Severity

Security Advisory Moderate

Topic

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

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

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

Affected Products

Updated Packages

• microcode_ctl-20240910-1.el9_5.src.rpm
• microcode_ctl-20240910-1.el9_5.noarch.rpm

Fixes

• This content is not included.BZ - 2270698
• This content is not included.BZ - 2270700
• This content is not included.BZ - 2270701
• This content is not included.BZ - 2270703
• This content is not included.BZ - 2270704
• This content is not included.BZ - 2292296
• This content is not included.BZ - 2292300

CVEs

• CVE-2023-22655
• CVE-2023-28746
• CVE-2023-38575
• CVE-2023-39368
• CVE-2023-43490
• CVE-2023-45733
• CVE-2023-46103

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.5_release_notes/index

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.