CVE-2021-47620
Medium
Elevated severity or exploit probability.
CVSS base
8.1
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS — probability of exploitation (30 days)
0.3%
25.7th percentile
CISA KEV
Not listed
Weakness / dates
CWE-125
Published 2024-06-20 · modified 2026-08-04
CVSS breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
| Attack Vector | A | Adjacent |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | N | None |
| Availability | H | High |
Timeline
- 2024-06-20 — Published (NVD)
- 2026-08-04 — Last modified (NVD)
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.
Affected
References
- https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082
- https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e
- https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e
- https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c
- https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67
- https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba
- https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb
- https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a
- https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c
- https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082
- https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e
- https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e
- https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c
- https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67
- https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba
- https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb
- https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a
- https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c