Some vulnerabilities have been reported in KVM qemu-kvm, which can be exploited by malicious, local users in a guest system to cause a DoS (Denial of Service) and potentially gain escalated privileges.
The vulnerabilities are caused due to boundary errors within the "virtio_blk_handle_write()" and "virtio_blk_handle_read()" functions in hw/virtio-blk.c, which can be exploited to cause a buffer overflow by sending specially crafted read or write requests to the virtio-blk driver.
The vulnerabilities are reported in version 0.14.0. Other versions may also be affected.
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