CVE-2022-48256 Denial of service in n/a
A self-CNAME loop in Technitium DNS Server causes excessive record generation, leading to a denial-of-service condition.
- 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-2022-48256?
CVE-2022-48256 is a high-severity denial of service vulnerability in n/a, published on 13 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Technitium DNS Server before 10.0 allows a self-CNAME denial-of-service attack in which a CNAME loop causes an answer to contain hundreds of records.
Weakness: CWE-835
Which versions are affected by CVE-2022-48256?
It affects 1 product.
Products include Technitium Dns Server.
How do I fix CVE-2022-48256?
No fix has been published for CVE-2022-48256 yet. Limit exposure of the affected software until one is available.
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-2022-48256 being exploited?
There is no known exploitation of CVE-2022-48256 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-67rx-hj63-9h2v.