Vulnerability identifier: #VU10714
Vulnerability risk: Low
Exploitation vector: Network
Exploit availability: No
Vendor: Digium (Linux Support Services)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the res_http_websocket.c code due to insufficient length checks on WebSocket frames. A remote attacker can send send WebSocket frames with a zero-length payload, trigger a busy loop condition until the underlying socket on the system is closed and cause the service to crash.
Update to version 15.2.2.
Vulnerable software versions
Asterisk Open Source: 15.0.0 - 15.2.1
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?