Asterisk 1.4 before 1.4.1 and 1.2 before 1.2.16 allows remote attackers to cause a denial of service (crash) by sending a Session Initiation Protocol (SIP) packet without a URI and SIP-version header, which results in a NULL pointer dereference.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Asterisk | Digium | 1.2.0_beta1 (including) | 1.2.0_beta1 (including) |
| Asterisk | Digium | 1.2.0_beta2 (including) | 1.2.0_beta2 (including) |
| Asterisk | Digium | 1.2.6 (including) | 1.2.6 (including) |
| Asterisk | Digium | 1.2.7 (including) | 1.2.7 (including) |
| Asterisk | Digium | 1.2.8 (including) | 1.2.8 (including) |
| Asterisk | Digium | 1.2.9 (including) | 1.2.9 (including) |
| Asterisk | Digium | 1.2.10 (including) | 1.2.10 (including) |
| Asterisk | Digium | 1.2.11 (including) | 1.2.11 (including) |
| Asterisk | Digium | 1.2.12 (including) | 1.2.12 (including) |
| Asterisk | Digium | 1.2.12.1 (including) | 1.2.12.1 (including) |
| Asterisk | Digium | 1.2.13 (including) | 1.2.13 (including) |
| Asterisk | Digium | 1.2.14 (including) | 1.2.14 (including) |
| Asterisk | Digium | 1.2.15 (including) | 1.2.15 (including) |
| Asterisk | Digium | 1.2_beta1 (including) | 1.2_beta1 (including) |
| Asterisk | Digium | 1.2_beta2 (including) | 1.2_beta2 (including) |
| Asterisk | Digium | 1.4.0 (including) | 1.4.0 (including) |
| Asterisk | Digium | 1.4.0_beta1 (including) | 1.4.0_beta1 (including) |
| Asterisk | Digium | 1.4.0_beta2 (including) | 1.4.0_beta2 (including) |