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Vulnerability of Asterisk: denial of service via Multiple Hold/Unhold Requests

Synthesis of the vulnerability 

An attacker can trigger a fatal error via Multiple Hold/Unhold Requests of Asterisk, in order to trigger a denial of service.
Impacted products: Asterisk Open Source.
Severity of this bulletin: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 18/02/2021.
Références of this threat: AST-2021-004, CERTFR-2021-AVI-136, CVE-2021-26713, CVE-2021-26714-ERROR, VIGILANCE-VUL-34617.

Description of the vulnerability 

An attacker can trigger a fatal error via Multiple Hold/Unhold Requests of Aster...
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This computer weakness note impacts software or systems such as Asterisk Open Source.

Our Vigil@nce team determined that the severity of this security bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this weakness announce.

Solutions for this threat 

Patches for this vulnerability are not yet public.
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