CVE-2016-6351

MEDIUM

QEMU - DoS/Arbitrary Code Execution

Title source: llm

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.

References (8)

[Patch] http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=926cde5f3e4d2504ed161ed0cb771ac7cad6fd11

[Patch] http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=cc96677469388bad3d66479379735cf75db069e3

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/07/25/14

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/07/26/7

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/92119

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3047-1

[Third Party Advisory] http://www.ubuntu.com/usn/USN-3047-2

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

Scores

CVSS v3 6.7

EPSS 0.0017

EPSS Percentile 37.7%

Attack Vector LOCAL

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

Classification

Status published

Affected Products (6)

qemu/qemu < 2.6.2

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

debian/debian_linux

n/a/n/a

Timeline

Published Sep 07, 2016

Tracked Since Feb 18, 2026