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Category:   Application (Generic)  >   Dhcp Vendors:   ISC (Internet Software Consortium)
ISC DHCP Packet Processing Bugs Let Remote Users Deny Service
SecurityTracker Alert ID:  1025918
SecurityTracker URL:
CVE Reference:   CVE-2011-2748, CVE-2011-2749   (Links to External Site)
Date:  Aug 11 2011
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.1.0 through 3.1-ESV-R1 (R2 never released), 4.0 all versions (EOL), 4.1.0 through 4.1.2rc1, 4.1-ESV through 4.1-ESV-R3b1, and 4.2.0 through 4.2.2rc1
Description:   Two vulnerabilities were reported in ISC DHCP. A remote user can cause denial of service conditions.

A remote user can send specially crafted data to cause the target service to halt.

David Zych at University of Illinois reported one of these vulnerabilities.

Impact:   A remote user can cause the target service to halt.
Solution:   The vendor has issued a fix (3.1-ESV-R3, 4.1-ESV-R3, 4.2.2).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Not specified
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Aug 15 2011 (Red Hat Issues Fix) ISC DHCP Packet Processing Bugs Let Remote Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Linux 4, 5, and 6.

 Source Message Contents

[Original Message Not Available for Viewing]

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