Vulnerability Details CVE-2008-1923
The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends "early audio" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.015
EPSS Ranking 80.3%
CVSS Severity
CVSS v2 Score 7.1
Products affected by CVE-2008-1923
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cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:*
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cpe:2.3:a:asterisk:asterisk_business_edition:*
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cpe:2.3:a:asterisk:asterisk_business_edition:a
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cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.2
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cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.3
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cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.0
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cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.1
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cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.1
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cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.2
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cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.3
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cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.4
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cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.0
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cpe:2.3:a:asterisk:asterisk_business_edition:c.1.0-beta7
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cpe:2.3:a:asterisk:asterisk_business_edition:c.1.0-beta8
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cpe:2.3:a:asterisk:asterisk_business_edition:c.1.0beta7
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cpe:2.3:a:asterisk:asterisk_business_edition:c.1.6.1
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cpe:2.3:a:asterisk:asterisknow:*
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cpe:2.3:a:asterisk:asterisknow:1.0
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cpe:2.3:a:asterisk:asterisknow:1.0.1
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cpe:2.3:a:asterisk:open_source:1.0
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cpe:2.3:a:asterisk:open_source:1.0.0
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cpe:2.3:a:asterisk:open_source:1.0.1
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cpe:2.3:a:asterisk:open_source:1.0.11
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cpe:2.3:a:asterisk:open_source:1.0.11.1
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cpe:2.3:a:asterisk:open_source:1.0.12
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cpe:2.3:a:asterisk:open_source:1.0.2
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cpe:2.3:a:asterisk:open_source:1.0.3
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cpe:2.3:a:asterisk:open_source:1.0.4
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cpe:2.3:a:asterisk:open_source:1.0.5
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cpe:2.3:a:asterisk:open_source:1.0.6
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cpe:2.3:a:asterisk:open_source:1.0.7
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cpe:2.3:a:asterisk:open_source:1.0.8
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cpe:2.3:a:asterisk:open_source:1.0.9
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cpe:2.3:a:asterisk:open_source:1.2.0
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cpe:2.3:a:asterisk:open_source:1.2.1
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cpe:2.3:a:asterisk:open_source:1.2.10
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cpe:2.3:a:asterisk:open_source:1.2.11
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cpe:2.3:a:asterisk:open_source:1.2.12
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cpe:2.3:a:asterisk:open_source:1.2.12.1
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cpe:2.3:a:asterisk:open_source:1.2.13
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cpe:2.3:a:asterisk:open_source:1.2.14
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cpe:2.3:a:asterisk:open_source:1.2.15
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cpe:2.3:a:asterisk:open_source:1.2.16
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cpe:2.3:a:asterisk:open_source:1.2.17
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cpe:2.3:a:asterisk:open_source:1.2.18
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cpe:2.3:a:asterisk:open_source:1.2.19
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cpe:2.3:a:asterisk:open_source:1.2.2
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cpe:2.3:a:asterisk:open_source:1.2.20
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cpe:2.3:a:asterisk:open_source:1.2.21
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cpe:2.3:a:asterisk:open_source:1.2.21.1
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cpe:2.3:a:asterisk:open_source:1.2.22
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cpe:2.3:a:asterisk:open_source:1.2.23
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cpe:2.3:a:asterisk:open_source:1.2.24
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cpe:2.3:a:asterisk:open_source:1.2.25
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cpe:2.3:a:asterisk:open_source:1.2.26
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cpe:2.3:a:asterisk:open_source:1.2.26.1
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cpe:2.3:a:asterisk:open_source:1.2.26.2
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cpe:2.3:a:asterisk:open_source:1.2.27
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cpe:2.3:a:asterisk:open_source:1.2.28
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cpe:2.3:a:asterisk:open_source:1.2.3
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cpe:2.3:a:asterisk:open_source:1.2.4
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cpe:2.3:a:asterisk:open_source:1.2.5
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cpe:2.3:a:asterisk:open_source:1.2.6
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cpe:2.3:a:asterisk:open_source:1.2.7
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cpe:2.3:a:asterisk:open_source:1.2.7.1
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cpe:2.3:a:asterisk:open_source:1.2.8
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cpe:2.3:a:asterisk:open_source:1.2.9
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cpe:2.3:a:asterisk:open_source:1.2.9.1
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cpe:2.3:a:asterisk:open_source:1.4.0
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cpe:2.3:a:asterisk:open_source:1.4.1
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cpe:2.3:a:asterisk:open_source:1.4.10
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cpe:2.3:a:asterisk:open_source:1.4.10.1
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cpe:2.3:a:asterisk:open_source:1.4.11
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cpe:2.3:a:asterisk:open_source:1.4.12
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cpe:2.3:a:asterisk:open_source:1.4.12.1
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cpe:2.3:a:asterisk:open_source:1.4.13
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cpe:2.3:a:asterisk:open_source:1.4.14
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cpe:2.3:a:asterisk:open_source:1.4.15
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cpe:2.3:a:asterisk:open_source:1.4.16
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cpe:2.3:a:asterisk:open_source:1.4.16.1
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cpe:2.3:a:asterisk:open_source:1.4.16.2
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cpe:2.3:a:asterisk:open_source:1.4.17
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cpe:2.3:a:asterisk:open_source:1.4.18
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cpe:2.3:a:asterisk:open_source:1.4.18.1
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cpe:2.3:a:asterisk:open_source:1.4.19
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cpe:2.3:a:asterisk:open_source:1.4.2
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cpe:2.3:a:asterisk:open_source:1.4.3
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cpe:2.3:a:asterisk:open_source:1.4.4
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cpe:2.3:a:asterisk:open_source:1.4.5
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cpe:2.3:a:asterisk:open_source:1.4.6
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cpe:2.3:a:asterisk:open_source:1.4.7
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cpe:2.3:a:asterisk:open_source:1.4.7.1
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cpe:2.3:a:asterisk:open_source:1.4.8
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cpe:2.3:a:asterisk:open_source:1.4.9
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cpe:2.3:a:asterisk:s800i:*
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cpe:2.3:a:asterisk:s800i:1.0
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cpe:2.3:a:asterisk:s800i:1.0.1
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cpe:2.3:a:asterisk:s800i:1.0.2
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cpe:2.3:a:asterisk:s800i:1.0.3
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cpe:2.3:a:asterisk:s800i:1.0.3.3
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cpe:2.3:a:asterisk:s800i:1.1.0
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cpe:2.3:a:asterisk:s800i:1.1.0.1