CVE-2011-5056 Denial of service in n/a
Local attackers can cause CPU exhaustion and denial of service in MaraDNS by triggering predictable hash collisions in zone files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2011-5056?
CVE-2011-5056 is a low-severity denial of service vulnerability in n/a, published on 8 Jan 2012. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The authoritative server in MaraDNS through 2.0.04 computes hash values for DNS data without restricting the ability to trigger hash collisions predictably, which might allow local users to cause a denial of service (CPU consumption) via crafted records in zone files, a different vulnerability than CVE-2012-0024.
Weakness: CWE-400
Which versions are affected by CVE-2011-5056?
It affects 1 product.
Products include Maradns Maradns.
How do I fix CVE-2011-5056?
No fix has been published for CVE-2011-5056 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-2011-5056 being exploited?
There is no known exploitation of CVE-2011-5056 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-p696-w4f9-fqc3.