Buffer overflow in the Nortel UNIStim IP Softphone 2050 allows remote attackers to cause a denial of service (application abort) and possibly execute arbitrary code via a flood of invalid characters to the RTCP port (5678/udp) that triggers a Windows error message, aka "extraneous messaging."
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://www.securityfocus.com/archive/1/482476/100/0/threaded | mailing list |
| http://secunia.com/advisories/27252 | third party advisory vendor advisory |
| http://securityreason.com/securityalert/3271 | third party advisory |
| http://www.csnc.ch/static/advisory/csnc/nortel_UNIStim_IP_softphone_buffer-overflow_v1.0.txt | exploit |
| http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=655203 | |
| http://www.vupen.com/english/advisories/2007/3540 | vdb entry |
| http://osvdb.org/38521 | vdb entry |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/37256 | vdb entry |
| http://www.securityfocus.com/bid/26118 | vdb entry exploit |