CVE-2016-2232 Null dereference in n/a
Remote authenticated users can crash Asterisk by sending a zero-length UDPTL FAX packet, 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-2016-2232?
CVE-2016-2232 is a medium-severity vulnerability in Digium Asterisk, published on 22 Feb 2016. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Asterisk Open Source 1.8.x, 11.x before 11.21.1, 12.x, and 13.x before 13.7.1 and Certified Asterisk 1.8.28, 11.6 before 11.6-cert12, and 13.1 before 13.1-cert3 allow remote authenticated users to cause a denial of service (uninitialized pointer dereference and crash) via a zero length error correcting redundancy packet for a UDPTL FAX packet that is lost.
Which versions are affected by CVE-2016-2232?
It affects 2 products.
Products include Digium Asterisk, Digium Certified Asterisk.
How do I fix CVE-2016-2232?
Upgrade to a fixed version.
Is CVE-2016-2232 being exploited?
There is no known exploitation of CVE-2016-2232 in the wild and no public exploit code.
Other vulnerabilities in Digium Asterisk
Sources
Also known as DEBIAN-CVE-2016-2232, GHSA-797w-rfcx-w327, UBUNTU-CVE-2016-2232.