CVE-2018-7287 Denial of service in n/a
Attackers can cause a denial of service via busy loop when handling zero-size WebSocket payloads in Asterisk if the HTTP server is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-7287?
CVE-2018-7287 is a medium-severity denial of service vulnerability in Digium Asterisk, published on 22 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in res_http_websocket.c in Asterisk 15.x through 15.2.1. If the HTTP server is enabled (default is disabled), WebSocket payloads of size 0 are mishandled (with a busy loop).
Weakness: CWE-754
Which versions are affected by CVE-2018-7287?
It affects 1 product.
Products include Digium Asterisk.
How do I fix CVE-2018-7287?
No fix has been published for CVE-2018-7287 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-2018-7287 being exploited?
There is no known exploitation of CVE-2018-7287 in the wild and no public exploit code.
Other vulnerabilities in Digium Asterisk
Sources
Also known as GHSA-38rg-6v6g-2qmq.