medium5.9
CVE-2021-26906
An issue was discovered in res_pjsip_session.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 …
Impact
An issue was discovered in res_pjsip_session.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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Digium | Asterisk | from 13.0.0 before 13.38.2 from 16.0.0 before 16.16.1 from 17.0.0 before 17.9.2 from 18.0 before 18.2.1 |
| Digium | Certified Asterisk | Version 16.8 |
Weakness classification
References
- NVD record
- CVE.org record
- 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
- 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