VDB-154976 · CVE-2020-10019 · GCVE-0-2020-10019

zephyrproject-rtos zephyr 1.14.x USB DFU wLength 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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in zephyrproject-rtos zephyr 1.14.x. This affects an unknown function of the component USB DFU. Such manipulation of the argument wLength as part of Request leads to buffer overflow. This vulnerability is documented as CVE-2020-10019. The attack needs to be performed locally. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in zephyrproject-rtos zephyr 1.14.x (Project Management Software) and classified as critical. Affected by this issue is an unknown part of the component USB DFU. The manipulation of the argument wLength as part of a Request leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.

The weakness was released 05/11/2020. This vulnerability is handled as CVE-2020-10019 since 03/03/2020. The attack needs to be approached locally. A simple authentication is necessary for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 2.1.0 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-154980, VDB-154979, VDB-154978 and VDB-154977. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Project Management Software

Vendor

zephyrproject-rtos

Name

zephyr

Version

1.14.x

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

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: Partially
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: zephyr 2.1.0

Timelineinfo

03/03/2020 🔍
05/11/2020 +69 days 🔍
05/12/2020 +1 days 🔍
10/16/2020 +157 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-10019 (🔍)
GCVE (CVE): GCVE-0-2020-10019
GCVE (VulDB): GCVE-100-154976
See also: 🔍

Entryinfo

Created: 05/12/2020 07:21
Updated: 10/16/2020 13:01
Changes: 05/12/2020 07:21 (40), 05/12/2020 07:26 (12), 10/16/2020 13:01 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.