Important CentOS kvm Update


kmod-kvm-83-266.el5.centos.1.x86_64.rpm, kmod-kvm-debug-83-266.el5.centos.1.x86_64.rpm, kvm-83-266.el5.centos.1.src.rpm, kvm-83-266.el5.centos.1.x86_64.rpm, kvm-qemu-img-83-266.el5.centos.1.x86_64.rpm, kvm-tools-83-266.el5.centos.1.x86_64.rpm
CVE-2013-6367, CVE-2013-6368,
2017-07-27 19:06
CVE-2013-6367 linux
CVE-2013-6368 linux
2017-04-01 19:07
2017-01-05 20:11


Updated kvm packages that fix two security issues are now available for Red
Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
Important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

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 divide-by-zero flaw was found in the apic_get_tmcct() function in KVM's
Local Advanced Programmable Interrupt Controller (LAPIC) implementation.
A privileged guest user could use this flaw to crash the host.

A memory corruption flaw was discovered in the way KVM handled virtual APIC
accesses that crossed a page boundary. A local, unprivileged user could use
this flaw to crash the system or, potentially, escalate their privileges on
the system. (CVE-2013-6368)

Red Hat would like to thank Andrew Honig of Google for reporting these

All kvm users are advised to 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.
Please see

Am I vulnerable?

The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

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Affected package information

Release Package Patched in
5 kmod-kvm kmod-kvm-83-266.el5.centos.1.x86_64.rpm
kmod-kvm-debug kmod-kvm-debug-83-266.el5.centos.1.x86_64.rpm
kvm kvm-83-266.el5.centos.1.src.rpm
kvm kvm-83-266.el5.centos.1.x86_64.rpm
kvm-qemu-img kvm-qemu-img-83-266.el5.centos.1.x86_64.rpm
kvm-tools kvm-tools-83-266.el5.centos.1.x86_64.rpm