Vulnerability CVE-2014-3347


Published: 2014-08-28   Modified: 2017-01-06

Description:
Cisco IOS 15.1(4)M2 on Cisco 1800 ISR devices, when the ISDN Basic Rate Interface is enabled, allows remote attackers to cause a denial of service (device hang) by leveraging knowledge of the ISDN phone number to trigger an interrupt timer collision during entropy collection, leading to an invalid state of the hardware encryption module, aka Bug ID CSCul77897.

Vendor: Cisco
Product: IOS 
Version: 15.1(4)m2;
Product: 1801 integrated service router 
Product: 1802 integrated service router 
Product: 1803 integrated service router 
Product: 1811 integrated service router 
Product: 1812 integrated service router 
Product: 1841 integrated service router 
Product: 1861 integrated service router 

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.4/10
6.9/10
4.9/10
Exploit range
Attack complexity
Authentication
Remote
High
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete

 References:
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3347
http://tools.cisco.com/security/center/viewAlert.x?alertId=35453
http://www.securityfocus.com/bid/69439
http://www.securitytracker.com/id/1030772
http://xforce.iss.net/xforce/xfdb/95558

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