CVE-2015-1558 Denial of service in n/a
Remote authenticated users can cause a denial of service by consuming file descriptors via incompatible codecs in SDP offers.
- 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-2015-1558?
CVE-2015-1558 is a low-severity denial of service vulnerability in Digium Asterisk, published on 9 Feb 2015. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Asterisk Open Source 12.x before 12.8.1 and 13.x before 13.1.1, when using the PJSIP channel driver, does not properly reclaim RTP ports, which allows remote authenticated users to cause a denial of service (file descriptor consumption) via an SDP offer containing only incompatible codecs.
Weakness: CWE-399
Which versions are affected by CVE-2015-1558?
It affects 1 product.
Products include Digium Asterisk.
How do I fix CVE-2015-1558?
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-2015-1558 being exploited?
There is no known exploitation of CVE-2015-1558 in the wild and no public exploit code.
Other vulnerabilities in Digium Asterisk
Sources
Also known as DEBIAN-CVE-2015-1558, GHSA-c6qp-2qc4-4h58.