VDB-209437 · CVE-2022-2347 · Nessus 210679

U-Boot 4096 DFU wLength heap-based 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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in U-Boot 4096. This affects an unknown function of the component DFU. This manipulation of the argument wLength causes heap-based overflow. This vulnerability is tracked as CVE-2022-2347. It is feasible to perform the attack on the physical device. No exploit exists.

Detailsinfo

A vulnerability was found in U-Boot 4096. It has been declared as critical. Affected by this vulnerability is an unknown code of the component DFU. The manipulation of the argument wLength with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer.

The weakness was disclosed 09/23/2022. The advisory is shared at seclists.org. This vulnerability is known as CVE-2022-2347 since 07/08/2022. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 210679 (EulerOS 2.0 SP10 : uboot-tools (EulerOS-SA-2024-2896)), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (210679). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

U-Boot

Version

4096

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.4
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CNA Base Score: 7.7
CNA Vector (Google Inc.): 🔍

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: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
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: 210679
Nessus Name: EulerOS 2.0 SP10 : uboot-tools (EulerOS-SA-2024-2896)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/08/2022 🔍
09/23/2022 +77 days 🔍
09/23/2022 +0 days 🔍
11/05/2025 +1139 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Not defined

CVE: CVE-2022-2347 (🔍)
GCVE (CVE): GCVE-0-2022-2347
GCVE (VulDB): GCVE-100-209437

Entryinfo

Created: 09/23/2022 20:14
Updated: 11/05/2025 11:12
Changes: 09/23/2022 20:14 (38), 10/23/2022 08:22 (21), 11/09/2024 07:17 (16), 11/05/2025 11:12 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.