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.
References
- cisco-isr-cve20143347-dos(95558) vdb-entry
- http://tools.cisco.com/security/center/viewAlert.x?alertId=35453
- 1030772 vdb-entry
- 20140827 Cisco 1800 Series ISR ISDN Basic Rate Interface Denial of Service Vulnerability vendor-advisory
- 69439 vdb-entry