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Category:   Device (Router/Bridge/Hub)  >   Cisco NX-OS Vendors:   Cisco
Cisco NX-OS Buffer Overflow in OTV GRE Processing Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1036946
SecurityTracker URL:
CVE Reference:   CVE-2016-1453   (Links to External Site)
Date:  Oct 5 2016
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Nexus 7000, 7700
Description:   A vulnerability was reported in Cisco NX-OS. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted packet header parameters in a UDP packet to the Overlay Transport Virtualization (OTV) interface trigger a buffer overflow in the generic routing encapsulation (GRE) implementation and cause the target OTV process to reload or execute arbitrary code.

The following Cisco products are affected:

Nexus 7000 Series Switches
Nexus 7700 Series Switches

The vendor has assigned bug ID CSCuy95701 to this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system or cause the target process to reload.
Solution:   The vendor has issued a fix (7.2(2)D1(1), 7.3(1)D1(1)).

The vendor advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error, Input validation error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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