CVE-2008-1923

Publication date 23 April 2008

Last updated 24 July 2024

Ubuntu priority

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
asterisk	9.10 karmic	Not affected
	9.04 jaunty	Not affected
	8.10 intrepid	Not affected
	8.04 LTS hardy	Not affected
	7.10 gutsy	Ignored end of life, was needed
	7.04 feisty	Ignored end of life, was needed
	6.06 LTS dapper	Ignored end of life

Notes

mdeslaur

fix was incomplete, see CVE-2008-1897

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
asterisk	Upstream: http://lists.digium.com/pipermail/asterisk-commits/2007-May/013260.html

References

Other references

https://www.cve.org/CVERecord?id=CVE-2008-1923