CVE-2022-30780 Denial of service in n/a
A remote attacker can cause a denial of service via CPU consumption due to a typo in header processing logic in Lighttpd.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-30780?
CVE-2022-30780 is a high-severity denial of service vulnerability in n/a, published on 11 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Lighttpd 1.4.56 through 1.4.58 allows a remote attacker to cause a denial of service (CPU consumption from stuck connections) because connection_read_header_more in connections.c has a typo that disrupts use of multiple read operations on large headers.
Weakness: CWE-682
Which versions are affected by CVE-2022-30780?
It affects 1 product.
Products include Lighttpd Lighttpd.
How do I fix CVE-2022-30780?
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-2022-30780 being exploited?
There is no known exploitation of CVE-2022-30780 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2022-30780, GHSA-43hv-3rv7-ch5p, UBUNTU-CVE-2022-30780.