Vulnerabilities > CVE-2021-31878 - Reachable Assertion vulnerability in Digium Asterisk
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 6 |
Common Weakness Enumeration (CWE)
References
- http://downloads.asterisk.org/pub/security/AST-2021-007.html
- http://downloads.asterisk.org/pub/security/AST-2021-007.html
- http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html
- http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html
- http://seclists.org/fulldisclosure/2021/Jul/48
- http://seclists.org/fulldisclosure/2021/Jul/48
- https://downloads.digium.com/pub/security/AST-2021-007.html
- https://downloads.digium.com/pub/security/AST-2021-007.html
- https://issues.asterisk.org/jira/browse/ASTERISK-29381
- https://issues.asterisk.org/jira/browse/ASTERISK-29381