CVEvulnerability
CVE-2021-31878
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-07-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
- Weaknesses
- CWE-617
Description
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.
Affected configurations
• digium asterisk 16.17.0
• digium asterisk 16.18.0
• digium asterisk 16.19.0
• digium asterisk 18.3.0
• digium asterisk 18.4.0
• digium asterisk 18.5.0
Related
Weakness · CWE (1)
- CWE-617 Reachable Assertion weakness
References
- http://downloads.asterisk.org/pub/security/AST-2021-007.html Patch, Vendor Advisory
- http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html Patch, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2021/Jul/48 Mailing List, Patch, Third Party Advisory
- https://downloads.digium.com/pub/security/AST-2021-007.html Patch, Vendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29381 Exploit, Issue Tracking, Vendor Advisory
- http://downloads.asterisk.org/pub/security/AST-2021-007.html Patch, Vendor Advisory
- http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html Patch, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2021/Jul/48 Mailing List, Patch, Third Party Advisory
- https://downloads.digium.com/pub/security/AST-2021-007.html Patch, Vendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29381 Exploit, Issue Tracking, Vendor Advisory