Linux Kernel x86_64 LDT Buffer Overflow May Let Local Users Gain Elevated Privileges
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SecurityTracker Alert ID: 1020544 |
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SecurityTracker URL: http://securitytracker.com/id/1020544
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CVE Reference:
CVE-2008-3247
(Links to External Site)
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Date: Jul 24 2008
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Impact:
Denial of service via local system, Root access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 2.6.25.x prior to 2.6.25.11
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Description:
A vulnerability was reported in Linux Kernel. A local user can cause denial of service conditions and may be able to obtain elevated privileges.
A local user can trigger a Local Descriptor Table buffer overflow on x86_64 systems to potentially execute arbitrary code with kernel level privileges.
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Impact:
A local user may be able to execute arbitrary code with kernel level privileges.
A local user can cause denial of service conditions on the target system.
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Solution:
The vendor has issued a fixed version (2.6.25.11).
The vendor's advisory is available at:
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.11
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Vendor URL: www.kernel.org/ (Links to External Site)
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Cause:
Boundary 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: Thu, 24 Jul 2008 08:41:11 -0400
Subject: Linux Kernel
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http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.11
SUSE wrote:
CVE-2008-3247: On x86_64 systems, a incorrect buffer size in LDT
handling might lead to local untrusted attackers causing a crash
of the machine or potentially execute code with kernel privileges.
This problem only affects the openSUSE 11.0 kernel, since the problem
was introduced in the 2.6.25 kernel.
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