CVE-2011-0220 Denial of service in Bonjour

Medium 5.5 Published 5 Feb 2020 Updated 6 Aug 2024

A crafted multicast DNS packet can crash Apple Bonjour, causing a denial of service for users of the affected library.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2011-0220?

CVE-2011-0220 is a medium-severity denial of service vulnerability in Apple Bonjour, published on 5 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Apple Bonjour before 2011 allows a crash via a crafted multicast DNS packet.

Weakness: CWE-20

Which versions are affected by CVE-2011-0220?

It affects 1 product.

Products include Apple Bonjour.

How do I fix CVE-2011-0220?

No fix has been published for CVE-2011-0220 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-2011-0220 being exploited?

There is no known exploitation of CVE-2011-0220 in the wild and no public exploit code.

Sources

Also known as GHSA-cqq5-x4gj-94gm.