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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS XR for NCS 5500 Series Routers HTTP/2 Processing Bug in gRPC Lets Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1039504
SecurityTracker URL:
CVE Reference:   CVE-2017-12270   (Links to External Site)
Date:  Oct 4 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6.1.1.BASE
Description:   A vulnerability was reported in Cisco IOS XR for NCS 5500 Series Routers. A remote user can cause the target service to crash.

A remote user can send a specially crafted HTTP/2 frame to trigger a packet processing flaw and cause the target emsd service to stop.

The vendor has assigned bug ID CSCvb99388 to this vulnerability.

Impact:   A remote user can cause the target emsd service to crash.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

Vendor URL: (Links to External Site)
Cause:   State error

Message History:   None.

 Source Message Contents



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