CVE-2014-3347

Summary

CVECVE-2014-3347
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-08-28 23:55:00 UTC
Updated2017-08-29 01:34:00 UTC
DescriptionCisco 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.

Risk And Classification

Problem Types: CWE-399

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco 1801 Integrated Service Router - All All All
Hardware Cisco 1801 Integrated Service Router - All All All
Hardware Cisco 1802 Integrated Service Router - All All All
Hardware Cisco 1802 Integrated Service Router - All All All
Hardware Cisco 1803 Integrated Service Router - All All All
Hardware Cisco 1803 Integrated Service Router - All All All
Hardware Cisco 1811 Integrated Service Router - All All All
Hardware Cisco 1811 Integrated Service Router - All All All
Hardware Cisco 1812 Integrated Service Router - All All All
Hardware Cisco 1812 Integrated Service Router - All All All
Hardware Cisco 1841 Integrated Service Router - All All All
Hardware Cisco 1841 Integrated Service Router - All All All
Hardware Cisco 1861 Integrated Service Router - All All All
Hardware Cisco 1861 Integrated Service Router - All All All
Operating System Cisco Ios 15.1(4)m2 All All All
Operating System Cisco Ios 15.1\(4\)m2 All All All
Operating System Cisco Ios 15.1\(4\)m2 All All All

References

ReferenceSourceLinkTags
Cisco 1800 Series CVE-2014-3347 Denial of Service Vulnerability BID www.securityfocus.com
Cisco 1800 Series Integrated Services Router ISDN Timing Error Lets Remote Users Deny Services - SecurityTracker SECTRACK www.securitytracker.com
20140827 Cisco 1800 Series ISR ISDN Basic Rate Interface Denial of Service Vulnerability CISCO tools.cisco.com Vendor Advisory
IBM X-Force Exchange XF exchange.xforce.ibmcloud.com
tools.cisco.com/security/center/viewAlert.x CONFIRM tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report