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AUSCERT External Security Bulletin Redistribution
ESB-2024.1925
Security update for ucode-intel
28 March 2024
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AusCERT Security Bulletin Summary
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Product: ucode-intel
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2023-43490 CVE-2023-38575 CVE-2023-39368
CVE-2023-22655 CVE-2023-28746
Original Bulletin:
https://www.suse.com/support/update/announcement/2024/suse-su-20240917-1
Comment: CVSS (Max): 6.5 CVE-2023-39368 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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Security update for ucode-intel
Announcement ID: SUSE-SU-2024:0917-1
Rating: moderate
References: o bsc#1221323
o CVE-2023-22655
o CVE-2023-28746
Cross-References: o CVE-2023-38575
o CVE-2023-39368
o CVE-2023-43490
o 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
o 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
o CVE-2023-38575 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N
CVSS scores: /S:U/C:H/I:N/A:N
o 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
o 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 o SUSE Linux Enterprise High Performance Computing 12 SP5
Products: o SUSE Linux Enterprise Server 12 SP5
o 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:
o Updated to Intel CPU Microcode 20240312 release. (bsc#1221323)
o 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
o 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.
o 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.
o 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.
o 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:
o SUSE Linux Enterprise Server for SAP Applications 12 SP5
zypper in -t patch SUSE-SLE-SERVER-12-SP5-2024-917=1
o SUSE Linux Enterprise High Performance Computing 12 SP5
zypper in -t patch SUSE-SLE-SERVER-12-SP5-2024-917=1
o SUSE Linux Enterprise Server 12 SP5
zypper in -t patch SUSE-SLE-SERVER-12-SP5-2024-917=1
Package List:
o 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
o 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
o 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:
o https://www.suse.com/security/cve/CVE-2023-22655.html
o https://www.suse.com/security/cve/CVE-2023-28746.html
o https://www.suse.com/security/cve/CVE-2023-38575.html
o https://www.suse.com/security/cve/CVE-2023-39368.html
o https://www.suse.com/security/cve/CVE-2023-43490.html
o https://bugzilla.suse.com/show_bug.cgi?id=1221323
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