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CVE-2007-3763

Published: Jul 18, 2007Updated: Apr 23, 2026 Sources: CVE List NVDNVD-CWE-Other
NVD MITRE
5.0CVSSMEDIUM
EPSS Score
26.6%
Top 2.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to cause a denial of service (crash) via a crafted (1) LAGRQ or (2) LAGRP frame that contains information elements of IAX frames, which results in a NULL pointer dereference when Asterisk does not properly set an associated variable.

CVSS Vector Breakdown

AV:NAC:LAu:NC:NI:NA:P
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:PAvailability
Partial
Open in CVSS calculator →

Weaknesses

NVD-CWE-Other

Affected Products

n/an/a
asteriskasterisk
On-premWeb App
Communications / voip-telephony
asterisk appliance developer kitasterisk
On-prem
Communications / voip-telephony
asterisknowasterisk
On-prem
Communications / voip-telephony
s800i applianceasterisk
On-prem
Communications / voip-telephony
asteriskoss-projectCommunicationsaka open source, asterisk appliance developer kit

Exploitability

Official Patch Available

References

http://ftp.digium.com/pub/asa/ASA-2007-015.pdf
ftp.digium.com
http://secunia.com/advisories/26099
secunia.com
http://www.securityfocus.com/bid/24950
securityfocus.com
and 7 more references View all →

Timeline

Published
Jul 18, 2007
Last Updated
Apr 23, 2026

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