Scientific Linux alert SL-kvm-20120124 (kvm)

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riehecky@fnal.gov 
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scientific-linux-errata@fnal.gov 
Subject:
    	     
 
Security ERRATA Important: kvm on SL5.x x86_64 
Date:
    	     
 
Tue, 24 Jan 2012 09:27:00 -0600
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<201201241527.q0OFR0aW011988@fefmon2.fnal.gov>
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Article, Thread
              
Synopsis:    Important: kvm security update
Issue Date:  2012-01-23
CVE Numbers: CVE-2011-4622
             CVE-2012-0029


KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for
the standard Scientific Linux kernel.

A heap overflow flaw was found in the way QEMU-KVM emulated the e1000
network interface card. A privileged guest user in a virtual machine whose
network interface is configured to use the e1000 emulated driver could use
this flaw to crash the host or, possibly, escalate their privileges on the
host. (CVE-2012-0029)

A flaw was found in the way the KVM subsystem of a Linux kernel handled PIT
(Programmable Interval Timer) IRQs (interrupt requests) when there was no
virtual interrupt controller set up. A malicious user in the kvm group on
the host could force this situation to occur, resulting in the host
crashing. (CVE-2011-4622)

All KVM users should upgrade to these updated packages, which contain
backported patches to correct these issues. Note: The procedure in the
Solution section must be performed before this update will take effect.

SL5:
  x86_64
     kmod-kvm-83-239.el5_7.1.x86_64.rpm
     kmod-kvm-debug-83-239.el5_7.1.x86_64.rpm
     kvm-83-239.el5_7.1.x86_64.rpm
     kvm-debuginfo-83-239.el5_7.1.x86_64.rpm
     kvm-qemu-img-83-239.el5_7.1.x86_64.rpm
     kvm-tools-83-239.el5_7.1.x86_64.rpm

- Scientific Linux Development Team