CVE-2021-26906
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-26906
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26906.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-26906
- Downstream
- Published
- 2021-02-18T20:15:12Z
- Modified
- 2025-10-14T14:33:30Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in respjsipsession.c in Digium Asterisk through 13.38.1; 14.x, 15.x, and 16.x through 16.16.0; 17.x through 17.9.1; and 18.x through 18.2.0, and Certified Asterisk through 16.8-cert5. An SDP negotiation vulnerability in PJSIP allows a remote server to potentially crash Asterisk by sending specific SIP responses that cause an SDP negotiation failure.
- References
-
- http://packetstormsecurity.com/files/161477/Asterisk-Project-Security-Advisory-AST-2021-005.html
- http://seclists.org/fulldisclosure/2021/Feb/61
- https://downloads.asterisk.org/pub/security/
- https://downloads.asterisk.org/pub/security/AST-2021-005.html
- https://issues.asterisk.org/jira/browse/ASTERISK-29196