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Category:   Application (Generic)  >   KVM Vendors:   kvm.qumranet.com
KVM pit_ioport_read() Bug Lets Local Users Deny Service
SecurityTracker Alert ID:  1023572
SecurityTracker URL:  http://securitytracker.com/id/1023572
CVE Reference:   CVE-2010-0309   (Links to External Site)
Date:  Feb 10 2010
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in KVM. A local user can cause denial of service conditions.

A local user can invoke a specially crafted call to cause the host system to crash.

The vulnerability resides in 'arch/x86/kvm/i8254.c'.

Impact:   A local user can cause denial of service conditions on the host system.
Solution:   The vendor has proposed a source code fix, available at:

http://www.mail-archive.com/kvm@vger.kernel.org/msg28002.html

Vendor URL:  linux-kvm.org/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 10 2010 (Red Hat Issues Fix) KVM pit_ioport_read() Bug Lets Local Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Linux 5.
Feb 19 2010 (Red Hat Issues Fix for Red Hat Enterprise Virtualization Hypervisor) KVM pit_ioport_read() Bug Lets Local Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Virtualization Hypervisor 2.1.



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