CVE-2007-4103

HighCVSS 7.5/10Last modified Jun 16, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-772

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://bugs.gentoo.org/show_bug.cgi?id=185713Issue Tracking, Patch
http://ftp.digium.com/pub/asa/ASA-2007-018.pdfBroken Link, Patch
http://osvdb.org/38197Broken Link
http://secunia.com/advisories/26274Broken Link, Patch, Vendor Advisory
http://secunia.com/advisories/29051Broken Link
http://security.gentoo.org/glsa/glsa-200802-11.xmlThird Party Advisory
http://securityreason.com/securityalert/2960Broken Link
http://www.securityfocus.com/archive/1/475069/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/24950Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1018472Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2007/2701Broken Link
http://bugs.gentoo.org/show_bug.cgi?id=185713Issue Tracking, Patch
http://ftp.digium.com/pub/asa/ASA-2007-018.pdfBroken Link, Patch
http://osvdb.org/38197Broken Link
http://secunia.com/advisories/26274Broken Link, Patch, Vendor Advisory
http://secunia.com/advisories/29051Broken Link
http://security.gentoo.org/glsa/glsa-200802-11.xmlThird Party Advisory
http://securityreason.com/securityalert/2960Broken Link
http://www.securityfocus.com/archive/1/475069/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/24950Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1018472Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2007/2701Broken Link

Timeline

Published: Jul 31, 2007
Last modified: Jun 16, 2026
NVD status: Modified

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