// For flags

CVE-2023-49141

Ubuntu Security Notice USN-6967-1

Severity Score

7.3
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Improper isolation in some Intel(R) Processors stream cache mechanism may allow an authenticated user to potentially enable escalation of privilege via local access.

It was discovered that some Intel® Core™ Ultra Processors did not properly isolate the stream cache. A local authenticated user could potentially use this to escalate their privileges. It was discovered that some Intel® Processors did not properly isolate the stream cache. A local authenticated user could potentially use this to escalate their privileges. It was discovered that some Intel® Processors did not correctly transition between the executive monitor and SMI transfer monitor. A privileged local attacker could use this to escalate their privileges.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Attack Requirements
Present
Privileges Required
Low
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
High
None
Integrity
High
None
Availability
High
None
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2023-11-28 CVE Reserved
  • 2024-08-14 CVE Published
  • 2025-03-14 CVE Updated
  • 2025-06-10 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-1189: Improper Isolation of Shared Resources on System-on-a-Chip (SoC)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Amazon
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Linux
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*-
Affected
Canonical
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Ubuntu Linux
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*-
Affected
Fedoraproject
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Fedora
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*-
Affected
Freebsd
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Freebsd
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*-
Affected
Intel
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Processors Stream Cache Mechanism
Search vendor "Intel" for product "Processors Stream Cache Mechanism"
*-
Affected
Opensuse
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Leap
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*-
Affected
Suse
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Sle-module-basesystem
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*-
Affected
Suse
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Sle Hpc-espos
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*-
Affected
Suse
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Sle Hpc-ltss
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*-
Affected
Suse
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Sle Hpc
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*-
Affected
Suse
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Sled
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*-
Affected
Suse
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Sles-ltss
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*-
Affected
Suse
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Sles
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*-
Affected
Suse
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Sles Sap
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*-
Affected
Suse
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Suse-manager-proxy
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*-
Affected
Suse
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Suse-manager-server
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*-
Affected