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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS/IOS XE DHCPv6 Relay Input Validation Flaw Lets Remote Users Cause the Target Device to Reload
SecurityTracker Alert ID:  1035381
SecurityTracker URL:  http://securitytracker.com/id/1035381
CVE Reference:   CVE-2016-1348   (Links to External Site)
Date:  Mar 23 2016
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): IOS, IOS XE
Description:   A vulnerability was reported in Cisco IOS and IOS XE. A remote user can cause the target device to reload.

A remote user can send a specially crafted DHCPv6 relay message to the target device to trigger an input validation flaw in the DHCPv6 relay feature and cause the target device to reload.

Systems with the DHCPv6 relay feature configured on one or more interfaces are affected.

The vendor has assigned bug ID CSCus55821 to this vulnerability.

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

The vendor's advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160323-dhcpv6

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160323-dhcpv6 (Links to External Site)
Cause:   Input validation error

Message History:   None.


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