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Category:   Application (Generic)  >   Dhcp Vendors:   ISC (Internet Software Consortium)
DHCP UDP Length Processing Flaw Lets Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1034657
SecurityTracker URL:  http://securitytracker.com/id/1034657
CVE Reference:   CVE-2015-8605   (Links to External Site)
Date:  Jan 13 2016
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.0.x, 4.1.x, 4.2.x, 4.1-ESV - 4.1-ESV-R12, 4.3.0 - 4.3.3
Description:   A vulnerability was reported in DHCP. A remote user on the local network can cause the target service to crash.

A remote user on the local network can send a packet with a specially crafted IPv4 UDP length value and cause the target service to crash.

Clients, relays, and servers are affected.

Sebastian Poehn from Sophos reported this vulnerability.

Impact:   A remote user on the local network can cause the target client, relay, or server to crash.
Solution:   The vendor has issued a fix (4.1-ESV-R12-P1, 4.3.3-P1).

The vendor's advisory is available at:

https://kb.isc.org/article/AA-01334

Vendor URL:  kb.isc.org/article/AA-01334 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jan 13 2016 (Ubuntu Issues Fix) DHCP UDP Length Processing Flaw Lets Remote Users Cause the Target Service to Crash
Ubuntu has issued a fix for Ubuntu Linux 12.04 LTS, 14.04 LTS, 15.04, and 15.10.



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