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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS XR MPLS LDP Processing Flaw Lets Remote Users Deny Service
SecurityTracker Alert ID:  1032715
SecurityTracker URL:
CVE Reference:   CVE-2015-4223   (Links to External Site)
Date:  Jun 25 2015
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): IOS XR 5.1.3; possibly other versions
Description:   A vulnerability was reported in Cisco IOS XR. A remote user can cause denial of service conditions on the target system.

A remote user can send specially crafted Multiprotocol Label Switching (MPLS) Label Distribution Protocol (LDP) packets to the target device to cause the target MPLS LDP process to reload.

The vendor has assigned bug ID CSCuu77478 to this vulnerability.

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

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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