VDB-319345 · CVE-2022-50233 · EUVD-2022-55213

Linux Kernel Bluetooth buffer size

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been classified as critical. This issue affects some unknown processing of the component Bluetooth. This manipulation causes buffer size. This vulnerability is registered as CVE-2022-50233. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (unknown version). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Bluetooth. The manipulation with an unknown input leads to a buffer size vulnerability. The CWE definition for the vulnerability is CWE-131. The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} Both dev_name and short_name are not guaranteed to be NULL terminated so this instead use strnlen and then attempt to determine if the resulting string needs to be truncated or not.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2022-50233 since 06/18/2025. The exploitation appears to be easy. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/30/2026).

The vulnerability scanner Nessus provides a plugin with the ID 270857 (SUSE SLES15 Security Update : kernel (SUSE-SU-2025:03628-1)), which helps to determine the existence of the flaw in a target environment.

Applying the patch dd7b8cdde098cf9f7c8de409b5b7bbb98f97be80 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at Tenable (270857), EUVD (EUVD-2022-55213) and CERT Bund (WID-SEC-2025-1754). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

SUSE Linux
Open Source Linux Kernel
Dell NetWorker

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer size
CWE: CWE-131 / CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 270857
Nessus Name: SUSE SLES15 Security Update : kernel (SUSE-SU-2025:03628-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: dd7b8cdde098cf9f7c8de409b5b7bbb98f97be80

Timelineinfo

06/18/2025 CVE reserved
08/09/2025 +52 days Advisory disclosed
08/09/2025 +0 days VulDB entry created
01/30/2026 +174 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50233 (🔒)
GCVE (CVE): GCVE-0-2022-50233
GCVE (VulDB): GCVE-100-319345
EUVD: 🔒
CERT Bund: WID-SEC-2025-1754 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 08/09/2025 18:50
Updated: 01/30/2026 21:00
Changes: 08/09/2025 18:50 (56), 08/09/2025 19:05 (1), 08/11/2025 23:30 (7), 10/18/2025 07:35 (1), 10/21/2025 17:57 (2), 11/20/2025 03:31 (12), 01/30/2026 21:00 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.