| Package | Affected versions | Patched versions |
|---|---|---|
| asterisk | ≥ 16.0.0, < 16.16.1≥ 17.0.0, < 17.9.2≥ 18.0.0, < 18.2.1 | 16.16.117.9.218.2.1 |
| certified asterisk | = 16.8 |
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.
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