DoS: Invalid Initialization in le_read_buffer_size_complete (zephyrproject-rtos zephyr)

CVE-2023-0397

CRITICAL 9.6

At a glance

Source: NVD
EPSS: EPSS 0.48 % · percentile 41 (2026-10-31)
State: PUBLISHED
Published: 2023-01-19 00:00 UTC
Updated: 2025-04-03 17:03 UTC
Assigner: zephyr
NVD status: Modified

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Description

A malicious / defect bluetooth controller can cause a Denial of Service due to unchecked input in le_read_buffer_size_complete.

Weaknesses (CWE)

CWE-703 — Improper Check or Handling of Exceptional Conditions
CWE-665 — Improper Initialization

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-wc2h-h868-q7hj

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.6	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H	zephyr
CVSS 3.1	CRITICAL 9.6	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H	NVD · vulnerabilities@zephyrproject.org (Secondary)
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)

European references

ENISA EUVD · EUVD-2023-12458
GCVE · GCVE-0-2023-0397

Affected configurations (NVD CPE)

cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:* ≤ 3.2.0

Affected products

Product	Versions
zephyrproject-rtos · zephyr	affected unspecified ≤ v3.2

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD