CVEvulnerability
CVE-2020-35776
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-02-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-120
Description
A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses.
Affected configurations
• digium asterisk (>= 13.0.0 <= 13.38.1)
• digium asterisk (>= 16.0.0 <= 16.15.1)
• digium asterisk (>= 17.0.0 <= 17.9.1)
• digium asterisk (>= 18.0 <= 18.1.1)
Related
Weakness · CWE (1)
- CWE-120 Buffer Copy without Checking Size of Input weakness
References
- http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html Patch, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Feb/57 Mailing List, Third Party Advisory
- https://downloads.asterisk.org/pub/security/AST-2021-001.html Vendor Advisory
- https://issues.asterisk.org/ Issue Tracking, Vendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29227 Exploit, Issue Tracking, Patch, Vendor Advisory
- http://packetstormsecurity.com/files/161470/Asterisk-Project-Security-Advisory-AST-2021-001.html Patch, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Feb/57 Mailing List, Third Party Advisory
- https://downloads.asterisk.org/pub/security/AST-2021-001.html Vendor Advisory
- https://issues.asterisk.org/ Issue Tracking, Vendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-29227 Exploit, Issue Tracking, Patch, Vendor Advisory