Vulnerability CVE-2013-7100
Published: 2013-12-19   Modified: 2013-12-20

Description:
Buffer overflow in the unpacksms16 function in apps/app_sms.c in Asterisk Open Source 1.8.x before 1.8.24.1, 10.x before 10.12.4, and 11.x before 11.6.1; Asterisk with Digiumphones 10.x-digiumphones before 10.12.4-digiumphones; and Certified Asterisk 1.8.x before 1.8.15-cert4 and 11.x before 11.2-cert3 allows remote attackers to cause a denial of service (daemon crash) via a 16-bit SMS message with an odd number of bytes, which triggers an infinite loop.

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
Digium -> Asterisk 
Digium -> Asterisk digiumphones 
Digium -> Certified asterisk 

 References:
http://archives.neohapsis.com/archives/bugtraq/2013-12/0089.html
http://downloads.asterisk.org/pub/security/AST-2013-006.html
http://www.debian.org/security/2014/dsa-2835
http://www.mandriva.com/security/advisories?name=MDVSA-2013:300
http://www.securityfocus.com/bid/64364
http://www.securitytracker.com/id/1029499
http://xforce.iss.net/xforce/xfdb/89825
https://issues.asterisk.org/jira/browse/ASTERISK-22590
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