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Category:   Application (Generic)  >   Dhcp Vendors:   ISC (Internet Software Consortium)
ISC DHCP TCP Failover Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1024862
SecurityTracker URL:
CVE Reference:   CVE-2010-3616   (Links to External Site)
Date:  Dec 13 2010
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 4.2 prior to 4.2.0-P2
Description:   A vulnerability was reported in ISC DHCP. A remote user can cause denial of service conditions.

A remote user can send specially crafted data to the target server on a port that has been configured for communication with a failover peer to cause the target server to stop responding to all normal DHCP protocol traffic.

The server must be restarted to return to normal operation.

Brad Bendily reported this vulnerability.

Impact:   A remote user can cause the target server to stop responding to all normal DHCP protocol traffic.
Solution:   The vendor has issued a fix (4.2.0-P2).

The vendor's advisory is available at:

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

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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