CVE-2018-10920 Other in knot-resolver

High 7.5 Published Updated

Remote attackers can poison the DNS cache due to improper input validation in Knot Resolver, affecting DNS integrity.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2018-10920?

CVE-2018-10920 is a high-severity vulnerability in cz.nic knot-resolver, published on 2 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper input validation bug in DNS resolver component of Knot Resolver before 2.4.1 allows remote attacker to poison cache.

Weakness: CWE-20

Which versions are affected by CVE-2018-10920?

It affects 1 product.

Products include Nic Knot Resolver.

How do I fix CVE-2018-10920?

Upgrade to a fixed version.

Is CVE-2018-10920 being exploited?

There is no known exploitation of CVE-2018-10920 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as DEBIAN-CVE-2018-10920, GHSA-xv4h-w5rx-q9c8, UBUNTU-CVE-2018-10920.

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