OpenBSD Kernel tcp_respond() Bug Lets Remote Users Deny Service
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SecurityTracker Alert ID: 1019495 |
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SecurityTracker URL: http://securitytracker.com/id/1019495
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CVE Reference:
CVE-2008-1058
(Links to External Site)
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Updated: Mar 19 2008
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Original Entry Date: Feb 25 2008
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Impact:
Denial of service via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 4.1, 4.2
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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.
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Impact:
A remote user can the target system to crash.
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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
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Vendor URL: www.openbsd.org/ (Links to External Site)
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Cause:
State error
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Underlying OS:
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Message History:
None.
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Source Message Contents
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Date: Mon, 25 Feb 2008 08:32:19 -0500
Subject: OpenBSD
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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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