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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS XE TFTP Memory Management Flaw Lets Remote Users Deny Service
SecurityTracker Alert ID:  1029424
SecurityTracker URL:
CVE Reference:   CVE-2013-6704   (Links to External Site)
Date:  Dec 3 2013
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco IOS XE. A remote user can cause denial of service conditions.

The system does not properly release memory for flows generated by TFTP UDP traffic. A remote user can make TFTP requests to cause the flow manager to hold UDP sessions in the session table, consuming available memory.

A local user can also trigger this flaw.

The vendor has assigned Bug IDs CSCuh09324 and CSCty42686 to this vulnerability.

Impact:   A remote user can cause the target system to become unstable on crash.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

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

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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