CVE-2016-6833

MediumCVSS 4.4/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 4.4/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8
http://www.openwall.com/lists/oss-security/2016/08/12/1Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/08/18/3Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/93255Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201609-01Third Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8
http://www.openwall.com/lists/oss-security/2016/08/12/1Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/08/18/3Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/93255Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201609-01Third Party Advisory

Timeline

Published: Dec 10, 2016
Last modified: Jun 17, 2026
NVD status: Modified

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