CVE-2016-0747 Denial of service in n/a
Remote attackers can cause denial of service in Nginx by exhausting worker process resources through excessive CNAME resolution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-0747?
CVE-2016-0747 is a medium-severity denial of service vulnerability in Apple Xcode, published on 15 Feb 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution.
Weakness: CWE-400
Which versions are affected by CVE-2016-0747?
It affects 5 products.
Products include Apple Xcode, Canonical Ubuntu Linux, Debian Debian Linux, F5 Nginx, Opensuse Leap.
How do I fix CVE-2016-0747?
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-2016-0747 being exploited?
There is no known exploitation of CVE-2016-0747 in the wild and no public exploit code.
Other vulnerabilities in Apple Xcode
Sources
Also known as DEBIAN-CVE-2016-0747, GHSA-769v-gfhq-g2w7, UBUNTU-CVE-2016-0747.