Security Advisory

CVE-2021-26717

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-02-18 19:39:46

Last updated 2024-08-03 20:33:40

Assigner mitre

State PUBLISHED

Description

An issue was discovered in Sangoma Asterisk 16.x before 16.16.1, 17.x before 17.9.2, and 18.x before 18.2.1 and Certified Asterisk before 16.8-cert6. When re-negotiating for T.38, if the initial remote response was delayed just enough, Asterisk would send both audio and T.38 in the SDP. If this happened, and the remote responded with a declined T.38 stream, then Asterisk would crash.

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