CVE-2016-7170

MEDIUM

Qemu < 2.7.1 - Improper Array Index Validation

Title source: rule

Description

The vmsvga_fifo_run function in hw/display/vmware_vga.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via vectors related to cursor.mask[] and cursor.image[] array sizes when processing a DEFINE_CURSOR svga command.

References (7)

[Patch] http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=167d97a3def77ee2dbf6e908b0ecbfe2103977db

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/09/09/4

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/09/09/7

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/92904

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

[Patch, Third Party Advisory] https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg01764.html

Scores

CVSS v3 4.4

EPSS 0.0008

EPSS Percentile 22.3%

Attack Vector LOCAL

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

Classification

CWE

CWE-129

Status published

Affected Products (4)

qemu/qemu < 2.7.1

debian/debian_linux

opensuse/leap

n/a/n/a

Timeline

Published Dec 10, 2016

Tracked Since Feb 18, 2026