CVE-2008-1897

N/A Unknown
Published: April 23, 2008 Modified: April 23, 2026
View on NVD

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.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://secunia.com/advisories/29927
Source: cve@mitre.org
Vendor Advisory
http://secunia.com/advisories/30010
Source: cve@mitre.org
Vendor Advisory
http://secunia.com/advisories/30042
Source: cve@mitre.org
Vendor Advisory
http://bugs.digium.com/view.php?id=10078
Source: af854a3a-2127-422b-91ae-364da2661108
http://downloads.digium.com/pub/security/AST-2008-006.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/29927
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://secunia.com/advisories/30010
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://secunia.com/advisories/30042
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://secunia.com/advisories/34982
Source: af854a3a-2127-422b-91ae-364da2661108
http://security.gentoo.org/glsa/glsa-200905-01.xml
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.altsci.com/concepts/page.php?s=asteri&p=2
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2008/dsa-1563
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/archive/1/491220/100/0/threaded
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/28901
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id?1019918
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.vupen.com/english/advisories/2008/1324
Source: af854a3a-2127-422b-91ae-364da2661108
https://downloads.asterisk.org/pub/security/AST-2008-006.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://exchange.xforce.ibmcloud.com/vulnerabilities/41966
Source: af854a3a-2127-422b-91ae-364da2661108

54 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
3.0%
87th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

asterisk