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SUSE: ucode-intel Important Escalation Risk Advisories 2025:03052-1

suse
Calendar Grey September 2, 2025
Dist Suse Esm H88
The latest release of ucode-intel addresses critical vulnerabilities for Ubuntu, significantly improving overall system integrity and defending against potential attack vectors.
* bsc#1248438 Cross-References: * CVE-2025-20053 * CVE-2025-20109

Summary

## This update for ucode-intel fixes the following issues: * Intel CPU Microcode was updated to the 20250812 release (bsc#1248438) * CVE-2025-20109: Improper Isolation or Compartmentalization in the stream cache mechanism for some Intel Processors may allow an authenticated user to potentially enable escalation of privilege via local access. * CVE-2025-22840: Sequence of processor instructions leads to unexpected behavior for some Intel Xeon 6 Scalable processors may allow an authenticated user to potentially enable escalation of privilege via local access * CVE-2025-22839: Insufficient granularity of access control in the OOB-MSM for some Intel Xeon 6 Scalable processors may allow a privileged user to potentially enable escalation of privilege via adjacent access.

Topics%20covered

Topics Covered

security advisory SuSE important escalation privilege ucode-intel

References

* bsc#1248438

Cross-

* CVE-2025-20053

* CVE-2025-20109

* CVE-2025-22839

* CVE-2025-22840

* CVE-2025-22889

* CVE-2025-26403

* CVE-2025-32086

CVSS scores:

* CVE-2025-20053 ( SUSE ): 7.0

CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2025-20053 ( SUSE ): 7.2 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

* CVE-2025-20053 ( NVD ): 7.0

CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2025-20053 ( NVD ): 7.2 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

* CVE-2025-20109 ( SUSE ): 7.3

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:03052-1
Release Date: 2025-09-02T17:41:11Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important escalation privilege ucode-intel

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