Rapid7 Vulnerability & Exploit Database

RHSA-2014:1669: qemu-kvm security and bug fix update

Back to Search

RHSA-2014:1669: qemu-kvm security and bug fix update

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
10/20/2014
Created
07/25/2018
Added
10/23/2014
Modified
07/04/2017

Description

KVM (Kernel-based Virtual Machine) is a full virtualization solution forLinux on AMD64 and Intel 64 systems. The qemu-kvm package provides theuser-space component for running virtual machines using KVM.An information leak flaw was found in the way QEMU's VGA emulator accessedframe buffer memory for high resolution displays. A privileged guest usercould use this flaw to leak memory contents of the host to the guest bysetting 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:All qemu-kvm users are advised to upgrade to these updated packages, whichcontain backported patches to correct these issues. After installing thisupdate, shut down all running virtual machines. Once all virtual machineshave shut down, start them again for this update to take effect.

Solution(s)

  • redhat-upgrade-libcacard
  • redhat-upgrade-libcacard-devel
  • redhat-upgrade-libcacard-tools
  • redhat-upgrade-qemu-guest-agent
  • redhat-upgrade-qemu-img
  • redhat-upgrade-qemu-kvm
  • redhat-upgrade-qemu-kvm-common
  • redhat-upgrade-qemu-kvm-debuginfo
  • redhat-upgrade-qemu-kvm-tools

References

  • redhat-upgrade-libcacard
  • redhat-upgrade-libcacard-devel
  • redhat-upgrade-libcacard-tools
  • redhat-upgrade-qemu-guest-agent
  • redhat-upgrade-qemu-img
  • redhat-upgrade-qemu-kvm
  • redhat-upgrade-qemu-kvm-common
  • redhat-upgrade-qemu-kvm-debuginfo
  • redhat-upgrade-qemu-kvm-tools

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;