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Category:   Device (Router/Bridge/Hub)  >   Juniper Junos Vendors:   Juniper
Juniper Junos FPC Fragmented Packet Processing Flaw Lets Remote Users Deny Service
SecurityTracker Alert ID:  1031011
SecurityTracker URL:
CVE Reference:   CVE-2014-6380   (Links to External Site)
Date:  Oct 14 2014
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Juniper Junos. A remote user can cause denial of service conditions.

A remote user can send a specially crafted set of fragmented packets to the target router to cause the target em driver to become blocked.

The vendor has assigned PR 942437 to this vulnerability.

Systems using an em interface for communications are affected, including M, T, MX, SRX5400/5600/5800, EX, QFX, PTX Series, and MAG-Series CMC.

Impact:   A remote user can cause the target em driver to become blocked.
Solution:   The vendor has issued a fix (11.4R11, 12.1R9, 12.1X44-D30, 12.1X45-D20, 12.1X46-D15, 12.1X47-D10, 12.2R8, 12.2X50-D70, 12.3R6, 13.1R4, 13.1X49-D55, 13.1X50-D30, 13.2R4, 13.2X50-D20, 13.2X51-D15, 13.2X52-D15, 13.3R1).

The vendor's advisory is available at:

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

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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