CVE-2020-17470

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Source
https://cve.org/CVERecord?id=CVE-2020-17470
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-17470.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-17470
Published
2020-12-11T23:15:13Z
Modified
2026-07-08T19:01:36Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in FNET through 4.6.4. The code that initializes the DNS client interface structure does not set sufficiently random transaction IDs (they are always set to 1 in _fnet_dns_poll in fnet_dns.c). This significantly simplifies DNS cache poisoning attacks.

References

Affected packages

Git / github.com/butok/fnet

Affected ranges

Type
GIT
Repo
https://github.com/butok/fnet
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
fdfcc63a5715b524ab1809fa67e9b939b5510325
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:butok:fnet:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.6.4"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

3.*
3.1.1
3.6.0
FNET_3.*
FNET_3.3.0
v3.*
v3.0.0
v3.2.0
v3.4.0
v3.5.0
v3.6.1
v3.7.0
v3.8.0
v3.8.1
v3.8.2
v3.9.0
v3.9.1
v3.9.2
v3.9.3
v3.9.3pre
v3.9.3prev
v3.9.3updated
v3.9.4
v4.*
v4.0.0
v4.0.1
v4.0.2
v4.1.0
v4.1.1
v4.2.0
v4.3.0
v4.4.0
v4.4.1
v4.5.0
v4.5.1
v4.5.2
v4.5.3
v4.6.0
v4.6.1
v4.6.2
v4.6.3
v4.6.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-17470.json"