CVE-2020-25109

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The number of DNS queries/responses (set in a DNS header) is not checked against the data present. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01	Third Party Advisory US Government Resource
https://www.kb.cert.org/vuls/id/815128	Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01	Third Party Advisory US Government Resource
https://www.kb.cert.org/vuls/id/815128	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:o:ethernut:nut\/os:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:17

Type	Values Removed	Values Added
References	~~() https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 - Third Party Advisory, US Government Resource~~	() https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 - Third Party Advisory, US Government Resource
References	~~() https://www.kb.cert.org/vuls/id/815128 - Third Party Advisory, US Government Resource~~	() https://www.kb.cert.org/vuls/id/815128 - Third Party Advisory, US Government Resource

Information

Published : 2020-12-11 23:15

Updated : 2024-11-21 05:17

NVD link : CVE-2020-25109

Mitre link : CVE-2020-25109

CVE.ORG link : CVE-2020-25109

JSON object : View

Products Affected

ethernut

nut\/os

CWE

CWE-125

Out-of-bounds Read

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