medium6.5
CVE-2021-26713
A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk befor…
Impact
A stack-based buffer overflow in res_rtp_asterisk.c in Sangoma Asterisk before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6 allows an authenticated WebRTC client to cause an Asterisk crash by sending multiple hold/unhold requests in quick succession. This is caused by a signedness comparison mismatch.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Digium | Asterisk | from 16.0.0 before 16.16.1 from 17.0.0 before 17.9.2 from 18.0.0 before 18.2.1 |
| Digium | Certified Asterisk | Version 16.8 |
Weakness classification
References
- NVD record
- CVE.org record
- https://downloads.asterisk.org/pub/security/
- https://downloads.asterisk.org/pub/security/AST-2021-004.html
- https://issues.asterisk.org/jira/browse/ASTERISK-29205
- https://downloads.asterisk.org/pub/security/
- https://downloads.asterisk.org/pub/security/AST-2021-004.html
- https://issues.asterisk.org/jira/browse/ASTERISK-29205