VDB-299929 · CVE-2024-9055 · GCVE-0-2024-9055

Silicon Labs Simplicity SDK entropy

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.
3.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Silicon Labs Simplicity SDK. It has been rated as problematic. This vulnerability affects unknown code. This manipulation causes entropy. The identification of this vulnerability is CVE-2024-9055. It is feasible to perform the attack on the physical device. There is no exploit available.

Detailsinfo

A vulnerability has been found in Silicon Labs Simplicity SDK (version unknown) and classified as problematic. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a entropy vulnerability. The CWE definition for the vulnerability is CWE-331. The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others. As an impact it is known to affect confidentiality. The summary by CVE is:

The DPA countermeasures on Silicon Labs' Series 2 devices are not reseeded periodically as they should be. This may allow an attacker to eventually extract secret keys through a DPA attack.

The advisory is shared at community.silabs.com. This vulnerability is known as CVE-2024-9055 since 09/20/2024. The exploitation appears to be difficult. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Vendor

Silicon Labs

Name

Simplicity SDK

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.1

VulDB Base Score: 2.0
VulDB Temp Score: 2.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.2
CNA Vector (Silabs): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Entropy
CWE: CWE-331 / CWE-330 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/20/2024 🔍
03/17/2025 +178 days 🔍
03/17/2025 +0 days 🔍
03/17/2025 +0 days 🔍

Sourcesinfo

Advisory: community.silabs.com
Status: Confirmed

CVE: CVE-2024-9055 (🔍)
GCVE (CVE): GCVE-0-2024-9055
GCVE (VulDB): GCVE-100-299929

Entryinfo

Created: 03/17/2025 15:18
Changes: 03/17/2025 15:18 (61)
Complete: 🔍
Cache ID: 216::103