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CVE-2021-26713

—
CVSS 3.1
6.5 medium
EPSS
2%p78
Published
()
Modified
Description

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.

Vendors
digium
Products
asterisk, certified asterisk
Weakness
CWE-787
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVE.org GitHub PoCs EPSS (1.8%)

In the news

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