Vulnerability CVE-2008-0095
Published: 2008-01-07   Modified: 2012-02-12

Description:
The SIP channel driver in Asterisk Open Source 1.4.x before 1.4.17, Business Edition before C.1.0-beta8, AsteriskNOW before beta7, Appliance Developer Kit before Asterisk 1.4 revision 95946, and Appliance s800i 1.0.x before 1.0.3.4 allows remote attackers to cause a denial of service (daemon crash) via a BYE message with an Also (Also transfer) header, which triggers a NULL pointer dereference.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Crash from transfer using BYE with Also header
Joshua Colp
08.01.2008

Type:

CWE-399

 (Resource Management Errors)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Asterisk -> Asterisk appliance developer kit 
Asterisk -> Asterisk business edition 
Asterisk -> Asterisknow 
Asterisk -> Open source 
Asterisk -> S800i 

 References:
http://bugs.digium.com/view.php?id=11637
http://downloads.digium.com/pub/security/AST-2008-001.html
http://securityreason.com/securityalert/3520
http://www.securityfocus.com/archive/1/485727/100/0/threaded
http://www.securityfocus.com/bid/27110
http://www.securitytracker.com/id?1019152
http://www.vupen.com/english/advisories/2008/0019
https://exchange.xforce.ibmcloud.com/vulnerabilities/39361
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00166.html
https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00167.html
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