Medium severity · published Dec 10, 2016
CVE-2016-6833
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…
4.4
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0 · source: NVD
QE
Qemu · Qemu
through 2.6.2; 2.7.0; 2.7.0; 2.7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6833
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6833
git.qemu.org
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8
Mailing List
http://www.openwall.com/lists/oss-security/2016/08/12/1
Mailing List
http://www.openwall.com/lists/oss-security/2016/08/18/3
Third Party Advisory
http://www.securityfocus.com/bid/93255
Mailing List
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
Mailing List
https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html
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