A vulnerability has been discovered in Juniper Junos OS, which could allow for denial of service. The vulnerability specifically affects MX Series routers configured with SIP ALG and NAT. The Session Initiation Protocol (SIP) is a signaling protocol for initiating, modifying, and terminating multimedia sessions over the internet. An attacker can exploit this issue by sending specially-crafted SIP packets to crash the MS-PIC component on MS-MIC or MS-MPC. Repeated successful exploitation of this vulnerability could result in prolonged denial of service conditions.
Denial of Service
Please see vendor’s advisory for the list of available patches and updates.