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Category:   Device (Router/Bridge/Hub)  >   Cisco NX-OS Vendors:   Cisco
Cisco NX-OS PTP Frame Flooding Lets Remote Users Cause the Target Device to Reload
SecurityTracker Alert ID:  1041920
SecurityTracker URL:  http://securitytracker.com/id/1041920
CVE Reference:   CVE-2018-0378   (Links to External Site)
Date:  Oct 18 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco NX-OS. A remote user can cause the target device to reload.

A remote user can send specially crafted Precision Time Protocol (PTP) data to certain Nexus 5500, 5600, and 6000 series switches to exploit a lack of protection again PTP frame flood attacks.

The vendor has assigned bug ID CSCvg21830 to this vulnerability.

Impact:   A remote user can cause the target device to reload.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-nexus-ptp-dos

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-nexus-ptp-dos (Links to External Site)
Cause:   State error

Message History:   None.


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