An issue exists in Asterisk Open Source 13.x prior to 13.37.1, 16.x prior to 16.14.1, 17.x prior to 17.8.1, and 18.x prior to 18.0.1 and Certified Asterisk prior to 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
asterisk open source |
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asterisk certified asterisk |
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fedoraproject fedora 33 |
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debian debian linux 9.0 |
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