High severity7.5NVD Advisory· Published Jul 31, 2007· Updated Apr 23, 2026
CVE-2007-4103
CVE-2007-4103
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.
Affected products
2- cpe:2.3:a:digium:asterisk_appliance_developer_kit:*:*:*:*:*:*:*:*Range: <0.6.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
11- bugs.gentoo.org/show_bug.cginvdIssue TrackingPatch
- ftp.digium.com/pub/asa/ASA-2007-018.pdfnvdBroken LinkPatch
- secunia.com/advisories/26274nvdBroken LinkPatchVendor Advisory
- security.gentoo.org/glsa/glsa-200802-11.xmlnvdThird Party Advisory
- www.securityfocus.com/archive/1/475069/100/0/threadednvdBroken LinkThird Party AdvisoryVDB Entry
- www.securityfocus.com/bid/24950nvdBroken LinkThird Party AdvisoryVDB Entry
- www.securitytracker.com/idnvdBroken LinkThird Party AdvisoryVDB Entry
- osvdb.org/38197nvdBroken Link
- secunia.com/advisories/29051nvdBroken Link
- securityreason.com/securityalert/2960nvdBroken Link
- www.vupen.com/english/advisories/2007/2701nvdBroken Link
News mentions
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