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Vigil@nce - Asterisk: denial of service via res_pjsip_diversion
February 2021 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: Asterisk Open Source.
Severity: 2/4.
Consequences: denial of service on server, denial of service on service, denial of service on client.
Provenance: intranet client.
Confidence: confirmed by the editor (5/5).
Creation date: 23/12/2020.
DESCRIPTION OF THE VULNERABILITY
An attacker can trigger a fatal error via res_pjsip_diversion of Asterisk, in order to trigger a denial of service.
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