Linux Kernel IA64 Architecture restore_sigcontext() Access Control Bug May Let Local Users Gain Elevated Privileges
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SecurityTracker Alert ID: 1014275 |
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SecurityTracker URL: http://securitytracker.com/id/1014275
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CVE Reference:
CVE-2005-1761
(Links to External Site)
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Updated: Jul 7 2008
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Original Entry Date: Jun 23 2005
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Impact:
Root access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 2.6 prior to 2.6.12.1
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Description:
A vulnerability was reported in the Linux kernel. A local user may be able to gain elevated privileges.
An access control error in the restore_sigcontext() function allows a local user to invoke ptrace to access the AR.RSC register.
IA64-based architectures are affected.
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Impact:
[Editor's note: The impact was not specifically identified but is appears to allow privilege escalation.]
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Solution:
The vendor has released a fixed version (2.6.12.1), available at:
http://www.kernel.org/
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Vendor URL: www.kernel.org/ (Links to External Site)
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Cause:
Access control error
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Underlying OS:
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Thu, 23 Jun 2005 04:09:14 -0400
Subject: http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.12.1
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[PATCH] ia64 ptrace + sigrestore_context (CAN-2005-1761)
This patch fixes handling of accesses to ar.rsc via ptrace &
restore_sigcontext
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