CVE-2014-3347
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…
Does this matter?
Lower severity and a low EPSS score (0.98%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 5.4 MEDIUMAV:N/AC:H/Au:N/C:N/I:N/A:C
- EPSS
- 0.98% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- cisco/ios · cisco/1801 integrated service router · cisco/1802 integrated service router · cisco/1803 integrated service router · cisco/1811 integrated service router · cisco/1812 integrated service router · cisco/1841 integrated service router · cisco/1861 integrated service router
- Source
- psirt@cisco.com
References
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3347Vendor Advisory
- http://tools.cisco.com/security/center/viewAlert.x?alertId=35453Vendor Advisory
- http://www.securityfocus.com/bid/69439
- http://www.securitytracker.com/id/1030772
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95558
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3347Vendor Advisory
- http://tools.cisco.com/security/center/viewAlert.x?alertId=35453Vendor Advisory
- http://www.securityfocus.com/bid/69439
- http://www.securitytracker.com/id/1030772
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95558
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.