U-Boot 4096 DFU wLength heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.03

Summaryinfo

A vulnerability was found in U-Boot 4096. It has been rated as critical. Affected by this issue is some unknown functionality of the component DFU. The manipulation of the argument wLength leads to heap-based overflow. This vulnerability is handled as CVE-2022-2347. It is possible to launch the attack on the physical device. There is no exploit available. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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

Productinfo

Name

Version

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 🔍
11/09/2024 +778 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: 11/09/2024 07:17
Changes: 09/23/2022 20:14 (38), 10/23/2022 08:22 (21), 11/09/2024 07:17 (16)
Complete: 🔍
Cache ID: 216:C62:103

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