FreeBSD: VID-8CBD9C08-F8B9-11E6-AE1B-002590263BF5 (CVE-2017-2620): xen-tools -- cirrus_bitblt_cputovideo does not check if memory region is safe
9
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
02/21/2017
07/25/2018
02/22/2017
05/03/2019
Description
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
Solution(s)
- freebsd-upgrade-package-xen-tools
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