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Category:   OS (UNIX)  >   OpenBSD Kernel Vendors:   OpenBSD
OpenBSD Kernel tcp_respond() Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1019495
SecurityTracker URL:  http://securitytracker.com/id/1019495
CVE Reference:   CVE-2008-1058   (Links to External Site)
Updated:  Mar 19 2008
Original Entry Date:  Feb 25 2008
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.1, 4.2
Description:   A vulnerability was reported in OpenBSD. A remote user can cause a kernel panic.

A remote user can send specially crafted TCP data to trigger a flaw in tcp_respond() and trigger a kernel panic.

Impact:   A remote user can the target system to crash.
Solution:   The vendor has issued the following patches:

ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.1/common/013_tcprespond.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.2/common/007_tcprespond.patch

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

Message History:   None.


 Source Message Contents

Date:  Mon, 25 Feb 2008 08:32:19 -0500
Subject:  OpenBSD


RELIABILITY FIX: February 22, 2008   All architectures
Incorrect assumptions in tcp_respond can lead to a kernel panic.
A source code patch exists which remedies this problem.

ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.1/common/013_tcprespond.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.2/common/007_tcprespond.patch
 
 


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