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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.94%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 5.94% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-772
- Affected
- digium/asterisk · digium/asterisk appliance developer kit
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.