CVE-2021-47620 - CVE House
Back to Database
Status published Medium CVE-2021-47620

Bluetooth: refactor malicious adv data check

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: refactor malicious adv data check Check for out-of-bound read was being performed at the end of while num_reports loop, and would fill journal with false positives. Added check to beginning of loop processing so that it doesn't get checked after ptr has been advanced.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-47620

Credits & Attribution

No credits recorded in the NVD database.

References

More from Linux

View All →
CVE-2025-71315
drm/vkms: Convert to DRM's vblank timer
Unknown 0
CVE-2025-71314
drm/panthor: Recover from panthor_gpu_flush_caches() failures
Unknown 0
CVE-2025-71313
PCI: endpoint: Add missing NULL check for alloc_workqueue()
Unknown 0
CVE-2025-71312
fs/ntfs3: fix ntfs_mount_options leak in ntfs_fill_super()
Unknown 0
CVE-2025-71311
fs/ntfs3: Initialize new folios before use
Unknown 0

Affected Vendor

Affected Software

Linux
Vulnerable Versions:
048acfa4daf167b007b6bd8bef474e90c2282a5f, 7d4238edd3bf8b8c75571cc3b382bc10438ac588, 185c77cbb53bc7481acc5a0b4e6119bbe393d561, 4a1491432394b22e585a185ffca49086e4046aae, 24161b9c43de966789d5956428f45002d10f878e, ffc9019bd991707701273c2e5d8aed472229fc4d, 2de0e6a71ceb056e17e4684dce8b7640367996f9, 640a476e38fce6c70c738ac09e5167e34f570303, 3a56ef719f0b9682afb8a86d64b2399e36faa4e6, 4.4.300, 4.9.298, 4.14.263, 4.19.226, 5.4.174, 5.10.94, 5.15.17, 5.16.3

Timeline

Official Publish: June 20th, 2024
Last Modified: May 11th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.