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cvelistMitreCVELIST:CVE-2021-26713
HistoryFeb 19, 2021 - 7:30 p.m.

CVE-2021-26713

2021-02-1919:30:30
mitre
www.cve.org
1
cve-2021-26713
sangoma asterisk
certified asterisk
buffer overflow
authenticated
webrtc
asterisk crash.

EPSS

0.002

Percentile

52.5%

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.

EPSS

0.002

Percentile

52.5%