CVE-2016-3710

high-risk

Published 2016-05-11

The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.

Do I need to act?

0.07% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.8/10 High

LOCAL / LOW complexity

Affected Products (20)

Debian Linux

Helion Openstack

Ubuntu Linux

Qemu

Vm Server

Linux

Xenserver

Openstack

Enterprise Linux Desktop

Enterprise Linux Server

Affected Vendors

Qemu Canonical Hp Oracle Debian Redhat Citrix

References (44)

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-0724.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-0725.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-0997.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-0999.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-1000.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-1001.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-1002.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-1019.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-1943.html

Third Party Advisory http://support.citrix.com/article/CTX212736

Third Party Advisory http://www.debian.org/security/2016/dsa-3573

Mailing List http://www.openwall.com/lists/oss-security/2016/05/09/3

Third Party Advisory http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h...

Third Party Advisory http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.h...

Third Party Advisory http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htm...

Third Party Advisory http://www.securityfocus.com/bid/90316

Third Party Advisory http://www.securitytracker.com/id/1035794

Third Party Advisory http://www.ubuntu.com/usn/USN-2974-1

Third Party Advisory http://xenbits.xen.org/xsa/advisory-179.html

Third Party Advisory https://access.redhat.com/errata/RHSA-2016:1224

and 24 more references

/ 100

high-risk

Severity 27/34 · High

Exploitability 0/34 · Minimal

Exposure 25/34 · High