Linux Kernel ext4 Extent Splitting Bug in ext4_ext_convert_to_initialized() Lets Local Users Deny Service
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SecurityTracker Alert ID: 1026240 |
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SecurityTracker URL: http://securitytracker.com/id/1026240
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CVE Reference:
CVE-2011-3638
(Links to External Site)
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Date: Oct 25 2011
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Impact:
Denial of service 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 cause denial of service conditions.
A local user can exploit a flaw in ext4_ext_convert_to_initialized() to cause the target system to crash.
Zheng Liu reported this vulnerability.
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Impact:
A local user can cause the target system to crash.
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Solution:
The vendor has issued a fix, available at:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3
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Vendor URL: www.kernel.org/ (Links to External Site)
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Cause:
State 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: Tue, 25 Oct 2011 05:49:20 +0000
Subject: Linux Kernel
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ext4_ext_convert_to_initialized()
https://bugzilla.redhat.com/show_bug.cgi?id=747942
CVE-2011-3638
Upstream fix:
667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3
Acknowledgements:
Red Hat would like to thank Zheng Liu for reporting this issue.
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