CVE-2016-0746 Use after free in n/a
Remote attackers can crash nginx worker processes via crafted DNS responses, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-0746?
CVE-2016-0746 is a critical use after free 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
Use-after-free vulnerability in the resolver in nginx 0.6.18 through 1.8.0 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (worker process crash) or possibly have unspecified other impact via a crafted DNS response related to CNAME response processing.
Weakness: CWE-416
Which versions are affected by CVE-2016-0746?
It affects 5 products.
Products include Apple Xcode, Canonical Ubuntu Linux, Debian Debian Linux, F5 Nginx, Opensuse Leap.
How do I fix CVE-2016-0746?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2016-0746 being exploited?
There is no known exploitation of CVE-2016-0746 in the wild and no public exploit code.
Other vulnerabilities in Apple Xcode
Sources
Also known as DEBIAN-CVE-2016-0746, GHSA-c3r2-x25x-6jwc, UBUNTU-CVE-2016-0746.