VDB-237733 · CVE-2023-4041 · GCVE-0-2023-4041

Silicon Labs Gecko Bootloader on ARM Firmware Update File Parser buffer overflow

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.
9.8	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Silicon Labs Gecko Bootloader on ARM. Affected by this issue is some unknown functionality of the component Firmware Update File Parser Module. This manipulation causes buffer overflow. This vulnerability appears as CVE-2023-4041. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Silicon Labs Gecko Bootloader on ARM (version now known). It has been declared as very critical. Affected by this vulnerability is some unknown processing of the component Firmware Update File Parser Module. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'), Out-of-bounds Write, Download of Code Without Integrity Check vulnerability in Silicon Labs Gecko Bootloader on ARM (Firmware Update File Parser modules) allows Code Injection, Authentication Bypass.This issue affects "Standalone" and "Application" versions of Gecko Bootloader.

The weakness was presented 08/23/2023. The advisory is shared at siliconlabs.lightning.force.com. This vulnerability is known as CVE-2023-4041 since 08/01/2023. 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 09/25/2024).

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

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Productinfo

Vendor

Silicon Labs

Name

Gecko Bootloader

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector (Silicon Labs): 🔍

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: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

08/01/2023 🔍
08/23/2023 +22 days 🔍
08/23/2023 +0 days 🔍
09/25/2024 +399 days 🔍

Sourcesinfo

Advisory: siliconlabs.lightning.force.com
Status: Confirmed

CVE: CVE-2023-4041 (🔍)
GCVE (CVE): GCVE-0-2023-4041
GCVE (VulDB): GCVE-100-237733

Entryinfo

Created: 08/23/2023 08:12
Updated: 09/25/2024 20:02
Changes: 08/23/2023 08:12 (48), 09/25/2024 20:02 (24)
Complete: 🔍
Cache ID: 216::103