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.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://securitytracker.com/id?1022819 | vdb entry |
| http://www.securityfocus.com/archive/1/506257/100/0/threaded | mailing list |
| http://secunia.com/advisories/36593 | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/36275 | vdb entry |
| http://downloads.asterisk.org/pub/security/AST-2009-006.html | vendor advisory |