Low CentOS qemu-kvm Security Update


libcacard-1.5.3-60.el7_0.10.i686.rpm, libcacard-1.5.3-60.el7_0.10.x86_64.rpm, libcacard-devel-1.5.3-60.el7_0.10.i686.rpm, libcacard-devel-1.5.3-60.el7_0.10.x86_64.rpm, libcacard-tools-1.5.3-60.el7_0.10.x86_64.rpm, qemu-guest-agent-1.5.3-60.el7_0.10.x86_64.rpm, qemu-img-1.5.3-60.el7_0.10.x86_64.rpm, qemu-kvm-1.5.3-60.el7_0.10.src.rpm, qemu-kvm-1.5.3-60.el7_0.10.x86_64.rpm, qemu-kvm-common-1.5.3-60.el7_0.10.x86_64.rpm, qemu-kvm-tools-1.5.3-60.el7_0.10.x86_64.rpm
rhn.redhat.com, lists.centos.org
2018-01-18 11:08
2017-07-27 19:07
2017-04-01 19:08
2017-01-05 20:12


Updated qemu-kvm packages that fix one security issue and one bug are now
available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Low security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the
user-space component for running virtual machines using KVM.

An information leak flaw was found in the way QEMU's VGA emulator accessed
frame buffer memory for high resolution displays. A privileged guest user
could use this flaw to leak memory contents of the host to the guest by
setting the display to use a high resolution in the guest. (CVE-2014-3615)

This issue was discovered by Laszlo Ersek of Red Hat.

This update also fixes the following bug:

* This update fixes a regression in the scsi_block_new_request() function,
which caused all read requests to through SG_IO if the host cache was not
used. (BZ#1141189)

All qemu-kvm users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. After installing this
update, shut down all running virtual machines. Once all virtual machines
have shut down, start them again for this update to take effect.
Please see https://www.redhat.com/footer/terms-of-use.html

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
7 libcacard libcacard-1.5.3-60.el7_0.10.i686.rpm
libcacard libcacard-1.5.3-60.el7_0.10.x86_64.rpm
libcacard-devel libcacard-devel-1.5.3-60.el7_0.10.i686.rpm
libcacard-devel libcacard-devel-1.5.3-60.el7_0.10.x86_64.rpm
libcacard-tools libcacard-tools-1.5.3-60.el7_0.10.x86_64.rpm
qemu-guest-agent qemu-guest-agent-1.5.3-60.el7_0.10.x86_64.rpm
qemu-img qemu-img-1.5.3-60.el7_0.10.x86_64.rpm
qemu-kvm qemu-kvm-1.5.3-60.el7_0.10.src.rpm
qemu-kvm qemu-kvm-1.5.3-60.el7_0.10.x86_64.rpm
qemu-kvm-common qemu-kvm-common-1.5.3-60.el7_0.10.x86_64.rpm
qemu-kvm-tools qemu-kvm-tools-1.5.3-60.el7_0.10.x86_64.rpm