CVE-2014-3347 - CVE House
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Status published Medium CVE-2014-3347

Cisco IOS 15.1(4)M2 on Cisco 1800 ISR devices, when the...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

ios, 1801 integrated service router, 1802 integrated service router, 1803 integrated service router, 1811 integrated service router, 1812 integrated service router, 1841 integrated service router, 1861 integrated service router
Vulnerable Versions:
15.1\(4\)m2

Timeline

Official Publish: August 28th, 2014
Last Modified: August 6th, 2024
Added to House: July 19th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.