Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Asterisk | Asterisk Appliance Developer Kit | All versions |
| Asterisk | Asterisk Business Edition | <= b2.5.1 |
| Asterisk | Asterisknow | <= 1.0.2 |
| Asterisk | Open Source | 1.0 |
| Asterisk | S800I | <= 1.1.0.2 |
Related Weaknesses (CWE)
References
- http://bugs.digium.com/view.php?id=10078
- http://downloads.digium.com/pub/security/AST-2008-006.html
- http://www.altsci.com/concepts/page.php?s=asteri&p=1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42049
- http://bugs.digium.com/view.php?id=10078
- http://downloads.digium.com/pub/security/AST-2008-006.html
- http://www.altsci.com/concepts/page.php?s=asteri&p=1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42049
FAQ
What is CVE-2008-1923?
CVE-2008-1923 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 ...
How severe is CVE-2008-1923?
CVE-2008-1923 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2008-1923?
Check the references section above for vendor advisories and patch information. Affected products include: Asterisk Asterisk Appliance Developer Kit, Asterisk Asterisk Business Edition, Asterisk Asterisknow, Asterisk Open Source, Asterisk S800I.