CVE-2020-17467 Information disclosure in n/a
A missing null termination check in FNET's LLMNR processing allows attackers to read sensitive memory contents via malicious requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-17467?
CVE-2020-17467 is a critical vulnerability in n/a, published on 11 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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: CWE-125
Which versions are affected by CVE-2020-17467?
It affects 1 product.
Products include Butok Fnet.
How do I fix CVE-2020-17467?
No fix has been published for CVE-2020-17467 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-17467 being exploited?
There is no known exploitation of CVE-2020-17467 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-wvw6-x7x2-94g8.