CVE-2012-3515: Input Validation

Published Nov 23, 2012
·
Updated

Qemu, as used in Xen 4.0, 4.1 and possibly other products, when emulating certain devices with a virtual console backend, allows local OS guest users to gain privileges via a crafted escape VT100 sequence that triggers the overwrite of a "device model's address space."

Affected Software

33 affected components
Qemu Qemu<1.2.0
XEN Xen=4.0.0
XEN Xen=4.1.0
openSUSE openSUSE=11.4
openSUSE openSUSE=12.1
openSUSE openSUSE=12.2
SUSE Linux Enterprise Desktop=10-sp4
SUSE Linux Enterprise Desktop=11-sp2
SUSE Linux Enterprise Server=10-sp2
SUSE Linux Enterprise Server=10-sp3
SUSE Linux Enterprise Server=10-sp4
SUSE Linux Enterprise Server=11-sp1
SUSE Linux Enterprise Server=11-sp2
SUSE Linux Enterprise Server Vmware=11-sp2
SUSE Linux Enterprise Software Development Kit=10-sp4
SUSE Linux Enterprise Software Development Kit=11-sp2
redhat Virtualization=3.0
redhat Enterprise Linux=6.0
redhat Virtualization=5.0
redhat Virtualization=6.0
redhat Enterprise Linux Desktop=5.0
redhat Enterprise Linux Desktop=6.0
redhat Enterprise Linux Eus=6.3
redhat Enterprise Linux Server=5.0
redhat Enterprise Linux Server=6.0
redhat Enterprise Linux Workstation=5.0
redhat Enterprise Linux Workstation=6.0
Debian Debian Linux=6.0
Debian Debian Linux=7.0
Canonical Ubuntu Linux=10.04
Canonical Ubuntu Linux=11.04
Canonical Ubuntu Linux=11.10
Canonical Ubuntu Linux=12.04

Event History

Nov 23, 2012
CVE Published
via MITRE·08:00 PM
Data Sourced
via MITRE·08:00 PM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2012-3515?

CVE-2012-3515 has a high severity rating due to the potential privilege escalation for local OS guest users.

2

How do I fix CVE-2012-3515?

To mitigate CVE-2012-3515, users should upgrade the affected QEMU version to 1.2.0 or higher.

3

Who is affected by CVE-2012-3515?

CVE-2012-3515 affects systems utilizing QEMU versions prior to 1.2.0 and specific versions of Xen and openSUSE.

4

What systems are vulnerable to CVE-2012-3515?

Vulnerable systems include Xen 4.0, 4.1 and various versions of openSUSE, SUSE Linux Enterprise, Red Hat, and Debian.

5

What type of vulnerability is CVE-2012-3515?

CVE-2012-3515 is a privilege escalation vulnerability that arises from improper handling of escape VT100 sequences.

Contact

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