Improper Input Validation Affecting fnet package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.12% (48th percentile)

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  • Snyk IDSNYK-UNMANAGED-FNET-2381051
  • published26 Jan 2022
  • disclosed11 Dec 2020
  • creditUnknown

Introduced: 11 Dec 2020

CVE-2020-17470  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

There is no fixed version for fnet.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. 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.

CVSS Scores

version 3.1