VULNERABILITY INTELLIGENCE
CVE-2020-17467
CVSS score9.1 CRITICAL
EPSS probability3.08%
CISA KEVNot currently listed
Published2020-12-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Description
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.
Weakness classification
- nvd@nist.gov: CWE-125
Primary references
- cve@mitre.org — Release Notes, Third Party Advisory
- cve@mitre.org — Third Party Advisory, US Government Resource
- cve@mitre.org — Third Party Advisory, US Government Resource
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, US Government Resource
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, US Government Resource