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Category:   Application (Generic)  >   Dhcp Vendors:   ISC (Internet Software Consortium)
ISC DHCPv6 Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1024999
SecurityTracker URL:
CVE Reference:   CVE-2011-0413   (Links to External Site)
Date:  Jan 28 2011
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.0.x-4.2.x
Description:   A vulnerability was reported in ISC DHCP. A remote user can cause denial of service conditions.

A remote user can send specially crafted message for an address that was previously declined and internally tagged as abandoned to trigger an assert failure and cause the target DHCPv6 service to crash.

DHCPv4 servers are not affected.

Impact:   A remote user can cause the target service to crash.
Solution:   The vendor has issued a fix (4.1.2-P1, 4.1-ESV-R1, or 4.2.1b1).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   State error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 15 2011 (Red Hat Issues Fix) ISC DHCPv6 Bug Lets Remote Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Linux 6.

 Source Message Contents

[Original Message Not Available for Viewing]

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