qemu security update

CentOS Errata and Security Advisory CESA-2018:0816

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.

Security Fix(es):

• Qemu: vga: OOB read access during display update (CVE-2017-13672)

• Qemu: Slirp: use-after-free when sending response (CVE-2017-13711)

• Qemu: memory exhaustion through framebuffer update request message in VNC server (CVE-2017-15124)

• Qemu: I/O: potential memory exhaustion via websock connection to VNC (CVE-2017-15268)

• Qemu: Out-of-bounds read in vga_draw_text routine (CVE-2018-5683)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank David Buchanan for reporting CVE-2017-13672; Wjjzhang (Tencent.com) for reporting CVE-2017-13711; and Jiang Xin and Lin ZheCheng for reporting CVE-2018-5683. The CVE-2017-15124 issue was discovered by Daniel Berrange (Red Hat).

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-cr-announce/2018-April/031363.html

Affected packages:
qemu-img
qemu-kvm
qemu-kvm-common
qemu-kvm-tools

Upstream details at:
https://access.redhat.com/errata/RHSA-2018:0816