CVE-2011-1507 Denial of service in n/a
Remote attackers can cause denial of service in Asterisk PBX by exhausting file descriptors and disk space through unauthenticated TCP connections.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-1507?
CVE-2011-1507 is a medium-severity denial of service vulnerability in Digium Asterisk, published on 27 Apr 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Asterisk Open Source 1.4.x before 1.4.40.1, 1.6.1.x before 1.6.1.25, 1.6.2.x before 1.6.2.17.3, and 1.8.x before 1.8.3.3 and Asterisk Business Edition C.x.x before C.3.6.4 do not restrict the number of unauthenticated sessions to certain interfaces, which allows remote attackers to cause a denial of service (file descriptor exhaustion and disk space exhaustion) via a series of TCP connections.
Weakness: CWE-399
Which versions are affected by CVE-2011-1507?
It affects 1 product.
Products include Digium Asterisk.
How do I fix CVE-2011-1507?
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-2011-1507 being exploited?
There is no known exploitation of CVE-2011-1507 in the wild and no public exploit code.
Other vulnerabilities in Digium Asterisk
Sources
Also known as DEBIAN-CVE-2011-1507, GHSA-rcww-x8ph-8v37.