CVE-2015-6855

It has been discovered that a QEMU emulator built with IDE disk and CD/DVD-ROM emulation support is vulnerable to a divide-by-zero issue. The flaw could occur when executing IDE's WIN_READ_NATIVE_MAX command to determine the maximum size of a drive. A privileged user inside the guest could use this flaw to crash the QEMU instance, resulting in a denial of service.

This issue affects the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5.

This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7.

This issue affects the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.

This issue affect the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.