# Security update for ucode-intel

Announcement ID: SUSE-SU-2024:0917-1  
Rating: moderate  
References:

  * bsc#1221323

  
Cross-References:

  * CVE-2023-22655
  * CVE-2023-28746
  * CVE-2023-38575
  * CVE-2023-39368
  * CVE-2023-43490

  
CVSS scores:

  * CVE-2023-22655 ( SUSE ):  6.1 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:N
  * CVE-2023-28746 ( SUSE ):  6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  * CVE-2023-38575 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2023-39368 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2023-43490 ( SUSE ):  5.3 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that solves five vulnerabilities can now be installed.

## Description:

This update for ucode-intel fixes the following issues:

  * Updated to Intel CPU Microcode 20240312 release. (bsc#1221323)
  * CVE-2023-39368: Protection mechanism failure of bus lock regulator for some
    Intel Processors may allow an unauthenticated user to potentially enable
    denial of service via network access
  * CVE-2023-38575: Non-transparent sharing of return predictor targets between
    contexts in some Intel Processors may allow an authorized user to
    potentially enable information disclosure via local access.
  * CVE-2023-28746: Information exposure through microarchitectural state after
    transient execution from some register files for some Intel Atom Processors
    may allow an authenticated user to potentially enable information disclosure
    via local access.
  * CVE-2023-22655 Protection mechanism failure in some 3rd and 4th Generation
    Intel Xeon Processors when using Intel SGX or Intel TDX may allow a
    privileged user to potentially enable escalation of privilege via local
    access.
  * CVE-2023-43490: Incorrect calculation in microcode keying mechanism for some
    Intel Xeon D Processors with Intel® SGX may allow a privileged user to
    potentially enable information disclosure via local access.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server for SAP Applications 12 SP5  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-2024-917=1

  * SUSE Linux Enterprise High Performance Computing 12 SP5  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-2024-917=1

  * SUSE Linux Enterprise Server 12 SP5  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-2024-917=1

## Package List:

  * SUSE Linux Enterprise Server for SAP Applications 12 SP5 (x86_64)
    * ucode-intel-debuginfo-20240312-134.1
    * ucode-intel-debugsource-20240312-134.1
    * ucode-intel-20240312-134.1
  * SUSE Linux Enterprise High Performance Computing 12 SP5 (x86_64)
    * ucode-intel-debuginfo-20240312-134.1
    * ucode-intel-debugsource-20240312-134.1
    * ucode-intel-20240312-134.1
  * SUSE Linux Enterprise Server 12 SP5 (x86_64)
    * ucode-intel-debuginfo-20240312-134.1
    * ucode-intel-debugsource-20240312-134.1
    * ucode-intel-20240312-134.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-22655.html
  * https://www.suse.com/security/cve/CVE-2023-28746.html
  * https://www.suse.com/security/cve/CVE-2023-38575.html
  * https://www.suse.com/security/cve/CVE-2023-39368.html
  * https://www.suse.com/security/cve/CVE-2023-43490.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1221323