An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.
Weakness
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Asterisk | Digium | 13.0.0 (including) | 13.38.3 (excluding) |
| Asterisk | Digium | 16.0.0 (including) | 16.19.1 (excluding) |
| Asterisk | Digium | 17.0.0 (including) | 17.9.4 (excluding) |
| Asterisk | Digium | 18.0.0 (including) | 18.15.1 (excluding) |
| Certified_asterisk | Digium | 16.8 (including) | 16.8 (including) |
| Certified_asterisk | Digium | 16.8-cert1-rc1 (including) | 16.8-cert1-rc1 (including) |
| Certified_asterisk | Digium | 16.8-cert1-rc2 (including) | 16.8-cert1-rc2 (including) |
| Certified_asterisk | Digium | 16.8-cert1-rc3 (including) | 16.8-cert1-rc3 (including) |
| Certified_asterisk | Digium | 16.8-cert1-rc4 (including) | 16.8-cert1-rc4 (including) |
| Certified_asterisk | Digium | 16.8-cert2 (including) | 16.8-cert2 (including) |
| Certified_asterisk | Digium | 16.8-cert3 (including) | 16.8-cert3 (including) |
| Certified_asterisk | Digium | 16.8-cert4 (including) | 16.8-cert4 (including) |
| Certified_asterisk | Digium | 16.8-cert4-rc1 (including) | 16.8-cert4-rc1 (including) |
| Certified_asterisk | Digium | 16.8-cert4-rc2 (including) | 16.8-cert4-rc2 (including) |
| Certified_asterisk | Digium | 16.8-cert4-rc3 (including) | 16.8-cert4-rc3 (including) |
| Certified_asterisk | Digium | 16.8-cert4-rc4 (including) | 16.8-cert4-rc4 (including) |
| Certified_asterisk | Digium | 16.8-cert5 (including) | 16.8-cert5 (including) |
| Certified_asterisk | Digium | 16.8-cert6 (including) | 16.8-cert6 (including) |
| Certified_asterisk | Digium | 16.8-cert7 (including) | 16.8-cert7 (including) |
| Certified_asterisk | Digium | 16.8-cert8 (including) | 16.8-cert8 (including) |
| Certified_asterisk | Digium | 16.8-cert9 (including) | 16.8-cert9 (including) |
| Asterisk | Ubuntu | bionic | * |
| Asterisk | Ubuntu | focal | * |
| Asterisk | Ubuntu | hirsute | * |
| Asterisk | Ubuntu | impish | * |
| Asterisk | Ubuntu | kinetic | * |
| Asterisk | Ubuntu | lunar | * |
| Asterisk | Ubuntu | mantic | * |
| Asterisk | Ubuntu | oracular | * |
| Asterisk | Ubuntu | plucky | * |
| Asterisk | Ubuntu | trusty | * |
| Asterisk | Ubuntu | xenial | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/10.html
- https://cwe.mitre.org/data/definitions/101.html
- https://cwe.mitre.org/data/definitions/105.html
- https://cwe.mitre.org/data/definitions/108.html
- https://cwe.mitre.org/data/definitions/120.html
- https://cwe.mitre.org/data/definitions/13.html
- https://cwe.mitre.org/data/definitions/135.html
- https://cwe.mitre.org/data/definitions/14.html
- https://cwe.mitre.org/data/definitions/24.html
- https://cwe.mitre.org/data/definitions/250.html
- https://cwe.mitre.org/data/definitions/267.html
- https://cwe.mitre.org/data/definitions/273.html
- https://cwe.mitre.org/data/definitions/28.html
- https://cwe.mitre.org/data/definitions/3.html
- https://cwe.mitre.org/data/definitions/34.html
- https://cwe.mitre.org/data/definitions/42.html
- https://cwe.mitre.org/data/definitions/43.html
- https://cwe.mitre.org/data/definitions/45.html
- https://cwe.mitre.org/data/definitions/46.html
- https://cwe.mitre.org/data/definitions/47.html
- https://cwe.mitre.org/data/definitions/51.html
- https://cwe.mitre.org/data/definitions/52.html
- https://cwe.mitre.org/data/definitions/53.html
- https://cwe.mitre.org/data/definitions/6.html
- https://cwe.mitre.org/data/definitions/64.html
- https://cwe.mitre.org/data/definitions/67.html
- https://cwe.mitre.org/data/definitions/7.html
- https://cwe.mitre.org/data/definitions/71.html
- https://cwe.mitre.org/data/definitions/72.html
- https://cwe.mitre.org/data/definitions/76.html
- https://cwe.mitre.org/data/definitions/78.html
- https://cwe.mitre.org/data/definitions/79.html
- https://cwe.mitre.org/data/definitions/8.html
- https://cwe.mitre.org/data/definitions/80.html
- https://cwe.mitre.org/data/definitions/83.html
- https://cwe.mitre.org/data/definitions/84.html
- https://cwe.mitre.org/data/definitions/9.html
References
- http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-AST-2021-008.html
- http://seclists.org/fulldisclosure/2021/Jul/49
- https://downloads.asterisk.org/pub/security/AST-2021-008.html
- https://issues.asterisk.org/jira/browse/ASTERISK-29392
- https://lists.debian.org/debian-lts-announce/2021/08/msg00005.html
- https://www.debian.org/security/2021/dsa-4999
- http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-AST-2021-008.html
- http://seclists.org/fulldisclosure/2021/Jul/49
- https://downloads.asterisk.org/pub/security/AST-2021-008.html
- https://issues.asterisk.org/jira/browse/ASTERISK-29392
- https://lists.debian.org/debian-lts-announce/2021/08/msg00005.html
- https://www.debian.org/security/2021/dsa-4999