Linux Kernel Event Overflow Monitoring Bug Lets Local Users Deny Service
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SecurityTracker Alert ID: 1025936 |
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SecurityTracker URL: http://securitytracker.com/id/1025936
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CVE Reference:
CVE-2011-2918
(Links to External Site)
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Date: Aug 16 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 monitor overflow on the perf::perf_count_sw_cpu_clock event to cause the target system to lock up.
The vulnerability resides in the __perf_event_overflow() function in 'kernel/events/core.c'.
Vince Weaver reported this vulnerability.
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Impact:
A local user can cause the target system to lock up.
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Solution:
The vendor has issued a source code fix, available at:
http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=commitdiff;h=a8b0ca17b80e92faab46ee7179ba9e99ccb61233
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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:
None.
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Source Message Contents
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Date: Tue, 16 Aug 2011 18:45:35 +0000
Subject: Linux Kernel
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https://lkml.org/lkml/2011/7/27/337
https://lkml.org/lkml/2011/7/28/284
CVE-2011-2918
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