CVE-2009-2346 Denial of service in n/a
Remote attackers can cause denial of service in Asterisk by exhausting call numbers through excessive IAX2 message exchanges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-2346?
CVE-2009-2346 is a high-severity denial of service vulnerability in n/a, published on 8 Sep 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The IAX2 protocol implementation in Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.2, 1.6.0.x before 1.6.0.15, and 1.6.1.x before 1.6.1.6; Business Edition B.x.x before B.2.5.10, C.2.x before C.2.4.3, and C.3.x before C.3.1.1; and s800i 1.3.x before 1.3.0.3 allows remote attackers to cause a denial of service (call-number exhaustion) by initiating many IAX2 message exchanges, a related issue to CVE-2008-3263.
Weakness: CWE-119
Which versions are affected by CVE-2009-2346?
It affects 5 products.
Products include Asterisk Appliance S800i, Asterisk Asterisk, Asterisk Open Source, Asterisk Opensource, Sangoma Asterisk.
How do I fix CVE-2009-2346?
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-2009-2346 being exploited?
There is no known exploitation of CVE-2009-2346 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2009-2346, GHSA-qm3m-5rgr-2hq8.