CVE-2007-4103

Impact

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

Weakness classification

References

• NVD record
• CVE.org record
• http://bugs.gentoo.org/show_bug.cgi?id=185713
• http://ftp.digium.com/pub/asa/ASA-2007-018.pdf
• http://osvdb.org/38197
• http://secunia.com/advisories/26274
• http://secunia.com/advisories/29051
• http://security.gentoo.org/glsa/glsa-200802-11.xml
• http://securityreason.com/securityalert/2960
• http://www.securityfocus.com/archive/1/475069/100/0/threaded
• http://www.securityfocus.com/bid/24950
• http://www.securitytracker.com/id?1018472
• http://www.vupen.com/english/advisories/2007/2701
• http://bugs.gentoo.org/show_bug.cgi?id=185713
• http://ftp.digium.com/pub/asa/ASA-2007-018.pdf
• http://osvdb.org/38197
• http://secunia.com/advisories/26274
• http://secunia.com/advisories/29051
• http://security.gentoo.org/glsa/glsa-200802-11.xml
• http://securityreason.com/securityalert/2960
• http://www.securityfocus.com/archive/1/475069/100/0/threaded
• http://www.securityfocus.com/bid/24950
• http://www.securitytracker.com/id?1018472
• http://www.vupen.com/english/advisories/2007/2701