Vulnerability CVE-2007-2297
Published: 2007-04-26   Modified: 2012-02-12

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).

See advisories in our WLB2 database:
Topic
Author
Date
Low
Multiple problems in SIP channel parser handling response codes
Kevin P. Fleming
28.04.2007

Type:

CWE-Other

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.8/10
6.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Asterisk -> Asterisk 

 References:
http://bugs.digium.com/view.php?id=9313
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?1017954
https://exchange.xforce.ibmcloud.com/vulnerabilities/33892
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