| Package | Affected versions | Patched versions |
|---|---|---|
| business communications manager | = 1000= 200= 400= 50= 50a= 50e= srg200= srg50 | |
| meridian sl100 | = cs2100 |
The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), Mobile Voice Client, and other product lines, allow remote attackers to block calls and force re-registration via a resume message to the Signaling Server that has a spoofed source IP address for the phone. NOTE: the attack is more disruptive if a new spoofed resume message is sent after each re-registration.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free