(RHSA-2018:1104) Important: qemu-kvm-rhev security, bug fix, and enhancement update

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

The following packages have been upgraded to a later upstream version: qemu-kvm-rhev (2.10.0). (BZ#1470749)

Security Fix(es):

• Qemu: stack buffer overflow in NBD server triggered via long export name (CVE-2017-15118)

• Qemu: DoS via large option request (CVE-2017-15119)

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

• Qemu: vga: reachable assert failure during display update (CVE-2017-13673)

• 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 and CVE-2017-13673; Wjjzhang (Tencent.com) for reporting CVE-2017-13711; and Jiang Xin and Lin ZheCheng for reporting CVE-2018-5683. The CVE-2017-15118 and CVE-2017-15119 issues were discovered by Eric Blake (Red Hat) and the CVE-2017-15124 issue was discovered by Daniel Berrange (Red Hat).