CVE-2008-1897

Publication date 23 April 2008

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Description

The IAX2 channel driver (chan_iax2) in Asterisk Open Source 1.0.x, 1.2.x before 1.2.28, and 1.4.x before 1.4.19.1; Business Edition A.x.x, B.x.x before B.2.5.2, and C.x.x before C.1.8.1; AsteriskNOW before 1.0.3; Appliance Developer Kit 0.x.x; and s800i before 1.1.0.3, when configured to allow unauthenticated calls, does not verify that an ACK response contains a call number matching the server's reply to a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed ACK response that does not complete a 3-way handshake. NOTE: this issue exists because of an incomplete fix for CVE-2008-1923.

Status

Package Ubuntu Release Status
asterisk 9.10 karmic
Not affected
9.04 jaunty
Not affected
8.10 intrepid
Not affected
8.04 LTS hardy
Fixed 1:1.4.17~dfsg-2ubuntu1.1
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

References

Other references