Synopsis: Important: kvm security update
Issue Date: 2012-01-23
CVE Numbers: CVE-2012-0029
CVE-2011-4622
—
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 Red Hat Enterprise 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)
Red Hat would like to thank Nicolae Mogoreanu for reporting CVE-2012-0029.
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-qemu-img-83-239.el5_7.1.x86_64.rpm
kvm-tools-83-239.el5_7.1.x86_64.rpm
– Scientific Linux Development Team
