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Category:   OS (UNIX)  >   OpenBSD Kernel Vendors:   OpenBSD
OpenBSD ICMP6 Echo Request Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1017518
SecurityTracker URL:  http://securitytracker.com/id/1017518
CVE Reference:   CVE-2007-0343   (Links to External Site)
Updated:  May 19 2008
Original Entry Date:  Jan 16 2007
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.9, 4.0
Description:   A vulnerability was reported in OpenBSD. A remote user can cause denial of service conditions.

A remote user can send a specially crafted ICMP6 echo request to cause the kernel to enter an infinite loop.

Impact:   A remote user can cause the kernel to crash.
Solution:   OpenBSD has issued the following patches:

ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.0/common/008_icmp6.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/018_icmp6.patch

Vendor URL:  www.openbsd.org/ (Links to External Site)
Cause:   State error
Underlying OS:  

Message History:   None.


 Source Message Contents

Date:  Tue, 16 Jan 2007 09:34:32 -0500
Subject:  OpenBSD


Under some circumstances, processing an ICMP6 echo request would cause the kernel to enter an infinite loop. 
A source code patch exists which remedies this problem.

ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.0/common/008_icmp6.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/018_icmp6.patch
 
 


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