Vulnerability Monitor

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CVE-2007-4103

The IAX2 channel driver (chan_iax2) in Asterisk Open 1.2.x before 1.2.23, 1.4.x before 1.4.9, and Asterisk Appliance Developer Kit before 0.6.0, when configured to allow unauthenticated calls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of calls that do not complete a 3-way handshake, which causes an ast_channel to be allocated but not released.

Published

2007-07-31T10:17:00.000

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Primary
CWE-772

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	digium	asterisk	< 1.2.23	Yes
Application	digium	asterisk	< 1.4.9	Yes
Application	digium	asterisk_appliance_developer_kit	< 0.6.0	Yes

References

http://bugs.gentoo.org/show_bug.cgi?id=185713 Issue Tracking, Patch ([email protected])
http://ftp.digium.com/pub/asa/ASA-2007-018.pdf Broken Link, Patch ([email protected])
http://osvdb.org/38197 Broken Link ([email protected])
http://secunia.com/advisories/26274 Broken Link, Patch, Vendor Advisory ([email protected])
http://secunia.com/advisories/29051 Broken Link ([email protected])
http://security.gentoo.org/glsa/glsa-200802-11.xml Third Party Advisory ([email protected])
http://securityreason.com/securityalert/2960 Broken Link ([email protected])
http://www.securityfocus.com/archive/1/475069/100/0/threaded Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://www.securityfocus.com/bid/24950 Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id?1018472 Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://www.vupen.com/english/advisories/2007/2701 Broken Link ([email protected])
http://bugs.gentoo.org/show_bug.cgi?id=185713 Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://ftp.digium.com/pub/asa/ASA-2007-018.pdf Broken Link, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://osvdb.org/38197 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/26274 Broken Link, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/29051 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-200802-11.xml Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://securityreason.com/securityalert/2960 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/475069/100/0/threaded Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/24950 Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1018472 Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2007/2701 Broken Link (af854a3a-2127-422b-91ae-364da2661108)