CVE-2023-2234

BT HCI host union variant confusion

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Published Jul 10, 2023 CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed

Description

Union variant confusion allows any malicious BT controller to execute arbitrary code on the Zephyr host.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

zephyrproject-rtos

Zephyr

unaffected

Version	Status	Constraints
`*`	affected	≤ 3.3

Configuration 1 [-]

cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2023-33744	Union variant confusion allows any malicious BT controller to execute arbitrary code on the Zephyr host.

Metrics

No CVSS v4.0

Attack Vector Physical

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.497% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact total

References

Link	Providers
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-fx9g-8fr2-q899

History

Nov 7, 2024 4:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Zephyrproject Zephyr

Weaknesses

CWE-843

Sources

CVE record Updated: Nov 7, 2024, 3:20 PM

Status: PUBLISHED
Assigner: zephyr
Published: Jul 10, 2023, 4:33 AM
Updated: Nov 7, 2024, 3:20 PM
Reserved: Apr 21, 2023, 5:15 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 6:19 AM

Updated: Aug 2, 2024, 6:19 AM

NVD Updated: Jun 17, 2026, 5:52 AM

Status: Modified
Published: Jul 10, 2023, 4:15 PM
Modified: Jun 17, 2026, 5:52 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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