Rapid7 Vulnerability & Exploit Database

RHSA-2015:0867: qemu-kvm security and bug fix update

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RHSA-2015:0867: qemu-kvm security and bug fix update

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
12/08/2014
Created
07/25/2018
Added
09/07/2015
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.It was found that the Cirrus blit region checks were insufficient. Aprivileged guest user could use this flaw to write outside of VRAM-allocated buffer boundaries in the host's QEMU process address space withattacker-provided data. (CVE-2014-8106)This issue was found by Paolo Bonzini of Red Hat.This update also fixes the following bug:All qemu-kvm users are advised to upgrade to these updated packages, whichcontain a backported patch to correct this issue. 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-qemu-guest-agent
  • redhat-upgrade-qemu-img
  • redhat-upgrade-qemu-kvm
  • redhat-upgrade-qemu-kvm-debuginfo
  • redhat-upgrade-qemu-kvm-tools

References

  • redhat-upgrade-qemu-guest-agent
  • redhat-upgrade-qemu-img
  • redhat-upgrade-qemu-kvm
  • redhat-upgrade-qemu-kvm-debuginfo
  • redhat-upgrade-qemu-kvm-tools

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