CVE-2008-1897
Summary
| CVE | CVE-2008-1897 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2008-04-23 16:05:00 UTC |
| Updated | 2026-04-23 00:35:47 UTC |
| 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. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:M/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Asterisk | Asterisknow | 1.0 | All | All | All |
| Application | Asterisk | Asterisknow | 1.0.1 | All | All | All |
| Application | Asterisk | Asterisknow | All | All | All | All |
| Application | Asterisk | Asterisk Appliance Developer Kit | 0.2 | All | All | All |
| Application | Asterisk | Asterisk Appliance Developer Kit | 0.3 | All | All | All |
| Application | Asterisk | Asterisk Appliance Developer Kit | 0.4 | All | All | All |
| Application | Asterisk | Asterisk Appliance Developer Kit | 0.5 | All | All | All |
| Application | Asterisk | Asterisk Appliance Developer Kit | 0.6 | All | All | All |
| Application | Asterisk | Asterisk Appliance Developer Kit | 0.6.0 | All | All | All |
| Application | Asterisk | Asterisk Appliance Developer Kit | 0.7 | All | All | All |
| Application | Asterisk | Asterisk Appliance Developer Kit | 0.8 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | a | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.1.3.2 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.1.3.3 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.2.2.0 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.2.2.1 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.2.3.1 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.2.3.2 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.2.3.3 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.2.3.4 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.2.3.6 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | b.2.5.0 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | c.1.0 | beta7 | All | All |
| Application | Asterisk | Asterisk Business Edition | c.1.0 | beta8 | All | All |
| Application | Asterisk | Asterisk Business Edition | c.1.6 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | c.1.6.1 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | c.1.6.2 | All | All | All |
| Application | Asterisk | Asterisk Business Edition | All | All | All | All |
| Application | Asterisk | Asterisk Business Edition | All | All | All | All |
| Application | Asterisk | Open Source | 1.0 | All | All | All |
| Application | Asterisk | Open Source | 1.0 | rc1 | All | All |
| Application | Asterisk | Open Source | 1.0 | rc2 | All | All |
| Application | Asterisk | Open Source | 1.0.0 | All | All | All |
| Application | Asterisk | Open Source | 1.0.1 | All | All | All |
| Application | Asterisk | Open Source | 1.0.11 | All | All | All |
| Application | Asterisk | Open Source | 1.0.11 | patch | All | All |
| Application | Asterisk | Open Source | 1.0.11.1 | All | All | All |
| Application | Asterisk | Open Source | 1.0.11.1 | patch | All | All |
| Application | Asterisk | Open Source | 1.0.12 | All | All | All |
| Application | Asterisk | Open Source | 1.0.12 | patch | All | All |
| Application | Asterisk | Open Source | 1.0.2 | All | All | All |
| Application | Asterisk | Open Source | 1.0.3 | All | All | All |
| Application | Asterisk | Open Source | 1.0.3.4 | All | All | All |
| Application | Asterisk | Open Source | 1.0.4 | All | All | All |
| Application | Asterisk | Open Source | 1.0.5 | All | All | All |
| Application | Asterisk | Open Source | 1.0.6 | All | All | All |
| Application | Asterisk | Open Source | 1.0.7 | All | All | All |
| Application | Asterisk | Open Source | 1.0.8 | All | All | All |
| Application | Asterisk | Open Source | 1.0.9 | All | All | All |
| Application | Asterisk | Open Source | 1.2.0 | All | All | All |
| Application | Asterisk | Open Source | 1.2.0 | beta1 | All | All |
| Application | Asterisk | Open Source | 1.2.0 | beta2 | All | All |
| Application | Asterisk | Open Source | 1.2.0 | rc1 | All | All |
| Application | Asterisk | Open Source | 1.2.0 | rc2 | All | All |
| Application | Asterisk | Open Source | 1.2.1 | All | All | All |
| Application | Asterisk | Open Source | 1.2.10 | All | All | All |
| Application | Asterisk | Open Source | 1.2.10 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.11 | All | All | All |
| Application | Asterisk | Open Source | 1.2.11 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.12 | All | All | All |
| Application | Asterisk | Open Source | 1.2.12 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.12.1 | All | All | All |
| Application | Asterisk | Open Source | 1.2.12.1 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.13 | All | All | All |
| Application | Asterisk | Open Source | 1.2.13 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.14 | All | All | All |
| Application | Asterisk | Open Source | 1.2.14 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.15 | All | All | All |
| Application | Asterisk | Open Source | 1.2.15 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.16 | All | All | All |
| Application | Asterisk | Open Source | 1.2.16 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.17 | All | All | All |
| Application | Asterisk | Open Source | 1.2.17 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.18 | All | All | All |
| Application | Asterisk | Open Source | 1.2.18 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.19 | All | All | All |
| Application | Asterisk | Open Source | 1.2.19 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.2 | All | All | All |
| Application | Asterisk | Open Source | 1.2.2 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.20 | All | All | All |
| Application | Asterisk | Open Source | 1.2.20 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.21 | All | All | All |
| Application | Asterisk | Open Source | 1.2.21 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.21.1 | All | All | All |
| Application | Asterisk | Open Source | 1.2.21.1 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.22 | All | All | All |
| Application | Asterisk | Open Source | 1.2.22 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.23 | All | All | All |
| Application | Asterisk | Open Source | 1.2.23 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.24 | All | All | All |
| Application | Asterisk | Open Source | 1.2.24 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.25 | All | All | All |
| Application | Asterisk | Open Source | 1.2.25 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.26 | All | All | All |
| Application | Asterisk | Open Source | 1.2.26 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.26.1 | All | All | All |
| Application | Asterisk | Open Source | 1.2.26.1 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.26.2 | All | All | All |
| Application | Asterisk | Open Source | 1.2.26.2 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.3 | All | All | All |
| Application | Asterisk | Open Source | 1.2.3 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.4 | All | All | All |
| Application | Asterisk | Open Source | 1.2.4 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.5 | All | All | All |
| Application | Asterisk | Open Source | 1.2.5 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.6 | All | All | All |
| Application | Asterisk | Open Source | 1.2.6 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.7 | All | All | All |
| Application | Asterisk | Open Source | 1.2.7 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.7.1 | All | All | All |
| Application | Asterisk | Open Source | 1.2.7.1 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.8 | All | All | All |
| Application | Asterisk | Open Source | 1.2.8 | netsec | All | All |
| Application | Asterisk | Open Source | 1.2.9 | All | All | All |
| Application | Asterisk | Open Source | 1.2.9.1 | All | All | All |
| Application | Asterisk | Open Source | 1.2.9.1 | netsec | All | All |
| Application | Asterisk | Open Source | 1.4.0 | All | All | All |
| Application | Asterisk | Open Source | 1.4.0 | beta2 | All | All |
| Application | Asterisk | Open Source | 1.4.0 | beta3 | All | All |
| Application | Asterisk | Open Source | 1.4.0 | beta4 | All | All |
| Application | Asterisk | Open Source | 1.4.1 | All | All | All |
| Application | Asterisk | Open Source | 1.4.10 | All | All | All |
| Application | Asterisk | Open Source | 1.4.10.1 | All | All | All |
| Application | Asterisk | Open Source | 1.4.11 | All | All | All |
| Application | Asterisk | Open Source | 1.4.12 | All | All | All |
| Application | Asterisk | Open Source | 1.4.12.1 | All | All | All |
| Application | Asterisk | Open Source | 1.4.13 | All | All | All |
| Application | Asterisk | Open Source | 1.4.14 | All | All | All |
| Application | Asterisk | Open Source | 1.4.15 | All | All | All |
| Application | Asterisk | Open Source | 1.4.16 | All | All | All |
| Application | Asterisk | Open Source | 1.4.16.1 | All | All | All |
| Application | Asterisk | Open Source | 1.4.16.2 | All | All | All |
| Application | Asterisk | Open Source | 1.4.17 | All | All | All |
| Application | Asterisk | Open Source | 1.4.18 | All | All | All |
| Application | Asterisk | Open Source | 1.4.18.1 | All | All | All |
| Application | Asterisk | Open Source | All | All | All | All |
| Application | Asterisk | Open Source | All | All | All | All |
| Application | Asterisk | S800i | 1.0 | All | All | All |
| Application | Asterisk | S800i | 1.0.1 | All | All | All |
| Application | Asterisk | S800i | 1.0.2 | All | All | All |
| Application | Asterisk | S800i | 1.0.3 | All | All | All |
| Application | Asterisk | S800i | 1.0.3.3 | All | All | All |
| Application | Asterisk | S800i | 1.1.0 | All | All | All |
| Application | Asterisk | S800i | 1.1.0.1 | All | All | All |
| Application | Asterisk | S800i | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Gentoo Linux Documentation -- Asterisk: Multiple vulnerabilities | af854a3a-2127-422b-91ae-364da2661108 | security.gentoo.org | |
| Merged revisions 114558 via svnmerge from · jcollie/asterisk@60de4fb · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| Debian update for asterisk - Advisories - Secunia | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| Fedora update for asterisk - Advisories - Secunia | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| SecurityFocus | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| Asterisk IAX2 Protocol Verification Bug Lets Remote Users Deny Service - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | |
| AST-2008-006 | af854a3a-2127-422b-91ae-364da2661108 | downloads.asterisk.org | |
| Merged revisions 114558 via svnmerge from · mojolingo/asterisk@20ac366 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| Merged revisions 114558 via svnmerge from · xrg/asterisk-xrg@51714a2 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| 0010078: IAX2 protocol flaw in IC_NEW could cause reflective amplification DoS - Digium Issue Tracker | af854a3a-2127-422b-91ae-364da2661108 | bugs.digium.com | |
| Asterisk IAX2 Packet Amplification Remote Denial of Service Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| AST-2008-006 | af854a3a-2127-422b-91ae-364da2661108 | downloads.digium.com | |
| Gentoo update for asterisk - Secunia Advisories - Vulnerability Information - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | |
| Merged revisions 114558 via svnmerge from · pruiz/asterisk@e0ef9bd · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| Asterisk IAX2 Handshake Denial of Service - Secunia Advisories - Vulnerability Information - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| [SECURITY] Fedora 7 Update: asterisk-1.4.19.1-1.fc7 | af854a3a-2127-422b-91ae-364da2661108 | www.redhat.com | |
| IBM X-Force Exchange | af854a3a-2127-422b-91ae-364da2661108 | exchange.xforce.ibmcloud.com | |
| When we receive a full frame that is supposed to contain our call num… · xrg/asterisk-xrg@10da3da · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| [SECURITY] Fedora 8 Update: asterisk-1.4.19.1-1.fc8 | af854a3a-2127-422b-91ae-364da2661108 | www.redhat.com | |
| Webmail : Solution de messagerie professionnelle - OVHcloud- OVH | af854a3a-2127-422b-91ae-364da2661108 | www.vupen.com | |
| Merged revisions 114558 via svnmerge from · lyx2014/Asterisk@0670e43 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| Merged revisions 114558 via svnmerge from · silentindark/asterisk-1@fe8b7f3 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| Merged revisions 114558 via svnmerge from · jcollie/asterisk@a8b1808 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| Merged revisions 114558 via svnmerge from · jcollie/asterisk@771b3d8 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| Merged revisions 114558 via svnmerge from · kaoru6/asterisk@1fe14f3 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | |
| AltSci Concepts Computer Journal - AltSci Concepts IAX2 Exploit Framework | af854a3a-2127-422b-91ae-364da2661108 | www.altsci.com | |
| Debian -- Security Information -- DSA-1563-1 asterisk | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.