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CVE-2008-1923

Date: April 23, 2008

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.

Severity Score

Related Resources (7)

https://exchange.xforce.ibmcloud.com/vulnerabilities/42049
http://www.altsci.com/concepts/page.php?s=asteri&p=1
http://bugs.digium.com/view.php?id=10078
https://people.canonical.com/~ubuntu-security/cve/CVE-2008-1923
http://downloads.digium.com/pub/security/AST-2008-006.html
https://nvd.nist.gov/vuln/detail/CVE-2008-1923
https://www.mend.io/vulnerability-database/CVE-2008-1923

Severity Score

Weakness Type (CWE)

Configuration

CWE-16

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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