CVE-2014-3347 Information

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.

Reference

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 https://exchange.xforce.ibmcloud.com/vulnerabilities/95558