Linux Kernel drm_mode_dirtyfb_ioctl() Lets Local Users Gain Elevated Privileges
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SecurityTracker Alert ID: 1026511 |
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SecurityTracker URL: http://securitytracker.com/id/1026511
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CVE Reference:
CVE-2012-0044
(Links to External Site)
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Updated: Jan 13 2012
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Original Entry Date: Jan 11 2012
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Impact:
User access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Description:
A vulnerability was reported in the Linux Kernel. A local user can obtain elevated privileges on the target system.
A local user can supply a specially crafted num_clips value to trigger an integer overflow in drm_mode_dirtyfb_ioctl() and execute arbitrary code with elevated privileges.
Haogang Chen reported this vulnerability.
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Impact:
A local user can obtain elevated privileges on the target system.
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Solution:
The vendor has issued a source code fix, available at:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a5cd335165e31db9dbab636fd29895d41da55dd2
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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:
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: Wed, 11 Jan 2012 21:36:39 +0000
Subject: Linux Kernel
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a5cd335165e31db9dbab636fd29895d41da55dd2
drm: integer overflow in drm_mode_dirtyfb_ioctl()
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