Description
The SIP channel driver (chan_sip) in Asterisk before 1.2.18 and 1.4.x before 1.4.3 does not properly parse SIP UDP packets that do not contain a valid response code, which allows remote attackers to cause a denial of service (crash).
Metrics
CVSS 2.0 7.8/10
AV:N/AC:L/Au:N/C:N/I:N/A:CAffected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://bugs.digium.com/view.php?id=9313
- http://secunia.com/advisories/25582
- http://securityreason.com/securityalert/2644
- http://www.asterisk.org/files/ASA-2007-011.pdf
- http://www.debian.org/security/2007/dsa-1358
- http://www.novell.com/linux/security/advisories/2007_34_asterisk.html
- http://www.securityfocus.com/archive/1/466882/100/0/threaded
- http://www.securityfocus.com/bid/24359
- http://www.securitytracker.com/id?1017954Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33892
- http://bugs.digium.com/view.php?id=9313
- http://secunia.com/advisories/25582
- http://securityreason.com/securityalert/2644
- http://www.asterisk.org/files/ASA-2007-011.pdf
- http://www.debian.org/security/2007/dsa-1358
- http://www.novell.com/linux/security/advisories/2007_34_asterisk.html
- http://www.securityfocus.com/archive/1/466882/100/0/threaded
- http://www.securityfocus.com/bid/24359
- http://www.securitytracker.com/id?1017954Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33892
Timeline
- Published
- Apr 26, 2007
- Last modified
- Jun 16, 2026
- NVD status
- Modified