FreeBSD: xen-tools -- QEMU: Banked access to VGA memory (VBE) uses inconsistent bounds checks (Multiple CVEs)
7
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
05/11/2016
07/25/2018
07/20/2016
03/21/2018
Description
The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.
Solution(s)
- freebsd-upgrade-package-xen-tools
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