CVE-2020-25108 Memory corruption in n/a
A lack of length validation in the DNS implementation allows attackers to cause denial of service or potentially execute arbitrary code via crafted packets.
- 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-2020-25108?
CVE-2020-25108 is a critical memory corruption 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 the DNS implementation in Ethernut in Nut/OS 5.1. The DNS response data length is not checked (it can be set to an arbitrary value from a packet). This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
Weakness: CWE-787
Which versions are affected by CVE-2020-25108?
It affects 1 product.
Products include Ethernut Nut\/Os.
How do I fix CVE-2020-25108?
No fix has been published for CVE-2020-25108 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-25108 being exploited?
There is no known exploitation of CVE-2020-25108 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-vcfv-2wp3-p4hq.