CVE-2016-6833

MEDIUM

QEMU < 2.6.2 - Use-After-Free in vmxnet3_io_bar0_write

Title source: llm
STIX 2.1

Description

Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active.

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/93255
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/08/12/1
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201609-01
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/08/18/3

Scores

CVSS v3 4.4
EPSS 0.0008
EPSS Percentile 22.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-416
Status published
Products (3)
debian/debian_linux 8.0
qemu/qemu 2.7.0 rc0 (3 CPE variants)
qemu/qemu < 2.6.2
Published Dec 10, 2016
Tracked Since Feb 18, 2026