CVE-2014-4045 Denial of service in n/a
Remote attackers can crash Asterisk via unsubscribe requests when sub_min_expiry is zero, requiring configuration changes to mitigate.
- 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-2014-4045?
CVE-2014-4045 is a medium-severity denial of service vulnerability in Digium Asterisk, published on 17 Jun 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Publish/Subscribe Framework in the PJSIP channel driver in Asterisk Open Source 12.x before 12.3.1, when sub_min_expiry is set to zero, allows remote attackers to cause a denial of service (assertion failure and crash) via an unsubscribe request when not subscribed to the device.
Weakness: CWE-189
Which versions are affected by CVE-2014-4045?
It affects 1 product.
Products include Digium Asterisk.
How do I fix CVE-2014-4045?
No fix has been published for CVE-2014-4045 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-2014-4045 being exploited?
There is no known exploitation of CVE-2014-4045 in the wild and no public exploit code.
Other vulnerabilities in Digium Asterisk
Sources
Also known as GHSA-p9mr-2cw8-4xhj.