The vulnerability of Xen hypervisors allows a hacker to write data to a disk that is only intended for reading.

The vulnerability of the libxl library in Xen hypervisors arises from the lack of restrictions on writing data when using the qemu-xen device. Exploiting this vulnerability allows a malicious actor to write data to a disk that is intended only for reading...

CVE-2015-7311

CVE-2015-7311 affects Xen’s libxl when using the qemu-xen device model; Xen 4.1.x–4.6.x did not properly enforce the readonly flag on disks, allowing local guest users to write to a read-only disk image. Public advisories (GLSA-2016-04, openSUSE/SUSE advisories) list this vulnerability among seve...