An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.
Weakness
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Asterisk | Sangoma | 15.0 (including) | 15.4.1 (excluding) |
| Asterisk | Ubuntu | artful | * |
| Asterisk | Ubuntu | cosmic | * |
| Asterisk | Ubuntu | trusty | * |
References
- http://downloads.asterisk.org/pub/security/AST-2018-007.html
- http://www.securityfocus.com/bid/104457
- https://issues.asterisk.org/jira/browse/ASTERISK-27807
- http://downloads.asterisk.org/pub/security/AST-2018-007.html
- http://www.securityfocus.com/bid/104457
- https://issues.asterisk.org/jira/browse/ASTERISK-27807