Vulnerability CVE-2015-4226
Published: 2015-06-30

Description:
The packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, which allows remote attackers to cause a denial of service (device hang) by sending malformed RTP packets after a call is answered, aka Bug ID CSCur39976.

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.1/10
6.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Cisco -> Unified ip phones 9900 series firmware 

 References:
http://tools.cisco.com/security/center/viewAlert.x?alertId=39554
http://www.securityfocus.com/bid/75471
http://www.securitytracker.com/id/1032748
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