Quick Emulator(Qemu) built with the ESP/NCR53C9x controller emulation support
is vulnerable to an OOB write access issue. It could occur while doing DMA
read into ESP command buffer 's->cmdbuf'; It could write past the 's->cmdbuf'
area, if it was transferring more than 16 bytes in esp_do_dma().
A privileged user inside guest could use this flaw to crash the Qemu process
resulting in DoS OR potentially leverage it to execute arbitrary code with
privileges of the Qemu process on the host.
Name: Li Qiang (360.cn Inc.)
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1360600]
xen-4.6.3-4.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
xen-4.5.3-9.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.