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Category:   Device (Router/Bridge/Hub)  >   Juniper Junos Vendors:   Juniper
Juniper Junos on M/MX Series Routers IPv6 ND Packet Processing Flaw Lets Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1038254
SecurityTracker URL:  http://securitytracker.com/id/1038254
CVE Reference:   CVE-2017-2340   (Links to External Site)
Date:  Apr 13 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): M/MX platforms
Description:   A vulnerability was reported in Juniper Junos on M/MX Series routers. A remote user can cause the target service to crash.

A remote user can send specially crafted IPv6 neighbor discover (ND) packets to the target system to cause the target packet forwarding engine (PFE) to hang or crash.  
M/MX series routers running Junos OS with Enhanced Subscriber Management for DHCPv6 configured are affected.

The vendor has assigned PR 1212431 to this vulnerability.

Impact:   A remote user can cause the target packet forwarding engine (PFE) to hang or crash.
Solution:   The vendor has issued a fix (15.1R5, 16.1R3, 16.2R1).

The vendor advisory is available at:

https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10786

Vendor URL:  kb.juniper.net/InfoCenter/index?page=content&id=JSA10786 (Links to External Site)
Cause:   State error

Message History:   None.


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