IM
IronMonkey Threat Research

CVE-2018-12126 MEDIUM

Published: 2019-05-30 | Last Modified: 2026-06-17 | Status: Modified

Description

Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf

Additional Descriptions (1)

En Microarchitectural Store Buffer Data Sampling (MSBDS): los búferes de almacenamiento en algunos microprocesadores que usan ejecución especulativa pueden permitir que un usuario autenticado active potencialmente la divulgación de información por medio de un canal lateral con acceso local. Puede encontrar una lista de los productos impactados aquí: https://www.intel.com/content/dam/www/public/us/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf.

CVSS Metrics

Base Score: 5.6 (MEDIUM)

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack VectorLOCAL
Attack ComplexityHIGH
Privileges RequiredLOW
User InteractionNONE
ScopeCHANGED
Confidentiality ImpactHIGH
Integrity ImpactNONE
Availability ImpactNONE

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Type: Secondary

Exploitability Score: 1.1

Impact Score: 4.0

Base Score: 4.7 (MEDIUM)

AV:L/AC:M/Au:N/C:C/I:N/A:N

Access VectorLOCAL
Access ComplexityMEDIUM
AuthenticationNONE
Confidentiality ImpactCOMPLETE
Integrity ImpactNONE
Availability ImpactNONE

Source: [email protected]

Type: Primary

Exploitability Score: 3.4

Impact Score: 6.9

Weaknesses

Source Type Description
[email protected] Primary
en CWE-200
134c704f-9b21-4f2e-91b3-4a467353bcc0 Secondary
en CWE-200

Affected Products

Vendor Product Version Update Type
intel microarchitectural_store_buffer_data_sampling_firmware - <built-in method update of dict object at 0x7e6110cf6080> Operating System
fedoraproject fedora 29 <built-in method update of dict object at 0x7e60a88ae880> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:intel:microarchitectural_store_buffer_data_sampling_firmware:-:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
No cpe:2.3:h:intel:microarchitectural_store_buffer_data_sampling:-:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*

References

Notification
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