CVE-2012-4435 Denial of service in n/a
Remote authenticated users can crash the fwknop server by sending a long IP address, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-4435?
CVE-2012-4435 is a medium-severity denial of service vulnerability in n/a, published on 22 Oct 2012. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
fwknop before 2.0.3 does not properly validate IP addresses, which allows remote authenticated users to cause a denial of service (server crash) via a long IP address.
Weakness: CWE-20
Which versions are affected by CVE-2012-4435?
It affects 1 product.
Products include Cipherdyne Fwknop.
How do I fix CVE-2012-4435?
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-2012-4435 being exploited?
There is no known exploitation of CVE-2012-4435 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2012-4435, GHSA-jvjc-qf53-pgj7.