The IAX2 channel driver (chan_iax2) in Asterisk Open 1.2.x before 1.2.23, 1.4.x before 1.4.9, and Asterisk Appliance Developer Kit before 0.6.0, when configured to allow unauthenticated calls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of calls that do not complete a 3-way handshake, which causes an ast_channel to be allocated but not released.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T14:46:38.776Z

Reserved: 2007-07-30T00:00:00

Link: CVE-2007-4103

cve-icon Vulnrichment

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cve-icon NVD

Status : Deferred

Published: 2007-07-31T10:17:00.000

Modified: 2025-04-09T00:30:58.490

Link: CVE-2007-4103

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses