The Research in Motion BlackBerry 7270 before 4.0 SP1 Bundle 108 does not properly manage transaction states, which allows remote attackers to cause a denial of service (temporary device hang) by sending a certain SIP INVITE message, but not providing an ACK when the call is answered.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Blackberry_7270 | Research_in_motion_limited | * | 4.0_sp1_bundle_83 (including) |