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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2008-04-23T00:00:00
Updated: 2024-08-07T08:40:59.845Z
Reserved: 2008-04-20T00:00:00
Link: CVE-2008-1897
Vulnrichment
No data.
NVD
Status : Modified
Published: 2008-04-23T16:05:00.000
Modified: 2024-11-21T00:45:36.733
Link: CVE-2008-1897
Redhat