CVE-2023-46317 Denial of service in n/a
An attacker can cause Knot Resolver to perform excessive TCP reconnections, leading to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-46317?
CVE-2023-46317 is a high-severity denial of service vulnerability in n/a, published on 22 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers.
Which versions are affected by CVE-2023-46317?
It affects 1 product.
Products include Nic Knot Resolver.
How do I fix CVE-2023-46317?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-46317 being exploited?
There is no known exploitation of CVE-2023-46317 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2023-46317, GHSA-vwhm-7rfg-7rqc, UBUNTU-CVE-2023-46317.