CVE-2020-17467
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:
- Availability: HIGH IMPACT
CVE-2020-17467 Vulnerability Summary
An issue was discovered in FNET through 4.6.4. The code for processing the hostname from an LLMNR request doesn't check for '\0' termination. Therefore, the deduced length of the hostname doesn't reflect the correct length of the actual data. This may lead to Information Disclosure in _fnet_llmnr_poll in fnet_llmnr.c during a response to a malicious request of the DNS class IN.
Access Complexity Graph for CVE-2020-17467
Impact Analysis for CVE-2020-17467
CVE-2020-17467: Detailed Information and External References
EPSS
0.00393
EPSS %
0.73352
References
0.00393
- http://fnet.sourceforge.net/manual/fnet_history.html
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
- https://www.kb.cert.org/vuls/id/815128
CWE
CWE-125
CAPEC
0.00393
- 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:a:butok:fnet:-:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:-:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.4.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.4.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.5.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.6.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.6.3:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.6.3:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.6.4:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.6.4:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.7.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.7.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.7.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.7.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.7.5:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.7.5:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.7.6:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.7.6:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.8.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.8.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.8.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.8.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.9.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.9.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.9.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:0.9.3:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:0.9.3:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:1.0.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:1.1.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:1.1.2:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:1.2.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:1.2.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:1.2.2:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.0.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.1.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.1.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.2.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.2.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.3.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.4.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.5.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.6.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.6.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.6.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.6.2:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.6.3:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.6.3:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:2.6.4:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.6.4:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.6.5:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.6.5:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.7.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.7.1:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:2.7.2:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.7.2:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:2.7.3:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.7.3:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:2.7.4:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.7.4:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:2.7.5:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.7.5:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:2.8.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.8.0:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:2.8.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.8.1:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:2.9.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:2.9.0:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.0.0:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.1.0:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.1.1:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.2.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.2.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.3.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.3.0:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.4.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.4.0:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.5.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.5.0:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.6.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.6.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.6.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.6.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.7.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.7.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.8.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.8.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.8.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.8.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.8.2:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.8.2:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.9.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.9.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.9.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.9.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.9.2:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.9.2:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:3.9.3:-:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.9.3:-:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.9.3:pre:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.9.3:pre:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.9.3:preview:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.9.3:preview:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.9.3:updated:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.9.3:updated:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:3.9.4:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:3.9.4:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.0.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.0.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.0.2:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.1.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.1.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.1.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.1.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.2.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.3.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.3.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.4.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.4.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.4.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.4.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.5.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.5.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.5.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.5.1:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:4.5.2:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.5.2:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.5.3:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.5.3:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.6.0:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.6.0:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.6.1:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.6.1:*:*:*:*:*:*:*
-
cpe:2.3:a:butok:fnet:4.6.2:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.6.2:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:4.6.3:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.6.3:*:*:*:*:*:*:*
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cpe:2.3:a:butok:fnet:4.6.4:*:*:*:*:*:*:*
cpe:2.3:a:butok:fnet:4.6.4:*:*:*:*:*:*:*
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:N/A:H
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