The IAX2 protocol implementation in Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 126.96.36.199, 1.6.0.x before 188.8.131.52, and 1.6.1.x before 184.108.40.206; 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 220.127.116.11 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.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because
they may have information that would be of interest to you. No inferences should be drawn on account of other sites
being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose.
NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further,
NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about
this page to email@example.com.
20090903 AST-2009-006: IAX2 Call Number Resource Exhaustion