CVE-2016-6351 Information

Description

The esp_do_dma function in hw/scsi/esp.c in QEMU (aka Quick Emulator) when built with ESP/NCR53C9x controller emulation support allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or execute arbitrary code on the QEMU host via vectors involving DMA read into ESP command buffer.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Reference

http://git.qemu.org/?p=qemu.git;a=commit;h=926cde5f3e4d2504ed161ed0cb771ac7cad6fd11 http://git.qemu.org/?p=qemu.git;a=commit;h=cc96677469388bad3d66479379735cf75db069e3 http://www.openwall.com/lists/oss-security/2016/07/25/14 http://www.openwall.com/lists/oss-security/2016/07/26/7 http://www.securityfocus.com/bid/92119 http://www.ubuntu.com/usn/USN-3047-1 http://www.ubuntu.com/usn/USN-3047-2 https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.7