CVE-2020-25110
Vulnerability Scoring
Attack Complexity Details
- Attack Complexity: Low Impact
- Attack Vector: NETWORK
- Privileges Required: None
- Scope: UNCHANGED
- User Interaction: NONE
CIA Impact Definition
- Confidentiality: HIGH IMPACT
- Integrity: HIGH IMPACT
- Availability: HIGH IMPACT
CVE-2020-25110 Vulnerability Summary
An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The length byte of a domain name in a DNS query/response is not checked, and is used for internal memory operations. This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
Access Complexity Graph for CVE-2020-25110
Impact Analysis for CVE-2020-25110
CVE-2020-25110: Detailed Information and External References
EPSS
0.67388
EPSS %
0.98176
References
0.67388
CWE
CWE-125
CAPEC
0.67388
- Overread Buffers: An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
Vulnerable Configurations
-
cpe:2.3:o:ethernut:nut\/os:4.10:*:*:*:*:*:*:*
cpe:2.3:o:ethernut:nut\/os:4.10:*:*:*:*:*:*:*
-
cpe:2.3:o:ethernut:nut\/os:5.1:*:*:*:*:*:*:*
cpe:2.3:o:ethernut:nut\/os:5.1:*:*:*:*:*:*:*
CVSS3 Source
nvd@nist.gov
CVSS3 Type
Primary
CVSS3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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