CVE-2018-7286 Denial of service in n/a
Remote authenticated users can crash Asterisk by sending SIP INVITE messages and abruptly closing TCP or TLS connections.
- 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-2018-7286?
CVE-2018-7286 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 22 Feb 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. res_pjsip allows remote authenticated users to crash Asterisk (segmentation fault) by sending a number of SIP INVITE messages on a TCP or TLS connection and then suddenly closing the connection.
Which versions are affected by CVE-2018-7286?
It affects 3 products.
Products include Debian Debian Linux, Digium Asterisk, Digium Certified Asterisk.
How do I fix CVE-2018-7286?
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-2018-7286 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-7286 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2018-7286, GHSA-c328-7q8p-p26v, UBUNTU-CVE-2018-7286.