Out-of-bounds Read Affecting fnet package, versions [0,]


Severity

Recommended
0.0
critical
0
10

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

Threat Intelligence

EPSS
0.39% (74th percentile)

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  • Snyk IDSNYK-UNMANAGED-FNET-2381052
  • published26 Jan 2022
  • disclosed11 Dec 2020
  • creditUnknown

Introduced: 11 Dec 2020

CVE-2020-17467  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for fnet.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read. 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.

CVSS Scores

version 3.1