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Date: | Wed, 19 May 2010 11:44:00 -0500 |
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Synopsis: Important: kvm security, bug fix and enhancement update
Issue date: 2010-03-30
CVE Names: CVE-2010-0741
A flaw was found in the way QEMU-KVM handled erroneous data provided by
the Linux virtio-net driver, used by guest operating systems. Due to a
deficiency in the TSO (TCP segment offloading) implementation, a guest's
virtio-net driver would transmit improper data to a certain QEMU-KVM
process on the host, causing the guest to crash. A remote attacker could
use this flaw to send specially-crafted data to a target guest system,
causing that guest to crash. (CVE-2010-0741)
The following procedure must be performed before this update will take
effect:
1) Stop all KVM guest virtual machines.
2) Either reboot the hypervisor machine or, as the root user, remove
(using "modprobe -r [module]") and reload (using "modprobe [module]")
all of the following modules which are currently running (determined
using "lsmod"):
kvm, ksm, kvm-intel or kvm-amd.
3) Restart the KVM guest virtual machines.
SL 5.x
SRPMS:
kvm-83-164.el5.src.rpm
x86_64:
kmod-kvm-83-164.el5_5.9.x86_64.rpm
kvm-83-164.el5_5.9.x86_64.rpm
kvm-qemu-img-83-164.el5_5.9.x86_64.rpm
kvm-tools-83-164.el5_5.9.x86_64.rpm
-Connie Sieh
-Troy Dawson
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