Test Kennung:	1.3.6.1.4.1.25623.1.0.142857
Kategorie:	Denial of Service
Titel:	Asterisk Audio Transcoding DoS Vulnerability (AST-2019-005)
Zusammenfassung:	Asterisk is prone to a denial of service vulnerability in audio; transcoding.
Beschreibung:	Summary: Asterisk is prone to a denial of service vulnerability in audio transcoding. Vulnerability Insight: This issue presented itself when an RTP packet containing no audio (and thus no samples) was received. In a particular transcoding scenario this audio frame would get turned into a frame with no origin information. If this new frame was then given to the audio transcoding support a crash would occur as no samples and no origin information would be present. The transcoding scenario requires the 'genericplc' option to be set to enabled (the default) and a transcoding path from the source format into signed linear and then from signed linear into another format. Affected Software/OS: Asterisk Open Source 13.28.0 and 16.5.0. Solution: Update to version 13.28.1, 16.5.1 or later. CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Querverweis:	Common Vulnerability Exposure (CVE) ID: CVE-2019-15639 http://packetstormsecurity.com/files/154372/Asterisk-Project-Security-Advisory-AST-2019-005.html
Copyright	Copyright (C) 2019 Greenbone AG

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